1. Field of the Invention
The present invention is directed to systems and methods for reclaiming components of wellbore drilling cuttings mixtures; and in one aspect, to transferring dried lean phase cuttings materials to other systems.
2. Description of the Related Art
Drilling fluids—typically called “muds”—used in hydrocarbon well drilling, as well known in the prior art, pick up solid cuttings and debris which must be removed if the fluid is to be re-used. These fluids are typically water based or oil-based. Often a mud with various additives is pumped down through a hollow drill string (pipe, drill collar, bit, etc.) into a wellbore and exits through holes in a drillbit. The mud picks up cuttings, rock, other solids, and various contaminants, such as, but not limited to, crude oil, water influx, salt and heavy metals from the well and carries them upwardly away from the bit and out of the well in a space between the well walls and the drill string. The mud is pumped up the wellbore and at the top of the well the contaminated solids-laden mud is discharged, e.g., to a shale shaker which has a screen or a series of screens that catch and remove solids from the mud as the mud passes through them. If drilled solids are not removed from the mud used during the drilling operation, recirculation of the drilled solids can create weight, viscosity, and gel problems in the mud, as well as increasing wear on mud pumps and other mechanical equipment used for drilling.
The prior art discloses a variety of drill cuttings treatment methods and systems, and methods for reinjecting processed drilling fluid back into a well, including, but not limited to, as disclosed in U.S. Pat. Nos. 4,942,929; 5,129,469; 5,109,933; 4,595,422; 5,129,468; 5,190,645; 5,361,998; 5,303,786; 5,431,236; 6,640,912; 6,106,733; 4,242,146 and 4,209,381—all of these patents incorporated fully herein for all purposes. In one example of a typical prior art system, land-based or offshore (e.g. as shown in U.S. Pat. No. 5,190,645), a well is drilled by a bit carried on a string of drill pipe as drilling mud is pumped by a pump into the drill pipe and out through nozzles in the bit. The mud cools and cleans the cutters of the bit and then passes up through the well annulus flushing cuttings out with it. After the mud is removed from the well annulus, it is treated before being pumped back into the pipe. The mud enters a shale shaker where the relatively large cuttings are removed. The mud then enters a degasser where gas can be removed if necessary. The degasser may be automatically turned on and off, as needed, in response to an electric or other suitable signal produced by a computer and communicated to degasser. The computer produces the signal as a function of data from a sensor assembly associated with shale shaker. The mud then passes to a desander and (or a desilter), for removal of smaller solids picked up in the well. In one aspect, the mud next passes to a treating station where, if necessary conditioning media, such as barite, may be added. Suitable flow controls e.g. a valve, control the flow of media. The valve may be automatically operated by an electric or other suitable signal produced by the computer as a function of the data from sensor assembly. From the treatment station, the mud is directed to a tank from which a pump takes suction, to be re-cycled through the well. The system shown is exemplary; additional components of the same types (e.g. additional treatment stations) or other types (e.g. centrifuges) are be included.
In another prior art system (e.g. as disclosed in U.S. Pat. No. 6,106,733) cuttings, debris, material, soil and fluid from a drilling operation in a wellbore W are conveyed to a shaker system. Separated oily solids (cuttings, soil, etc.) are conveyed with a conveyor (a pump may be used) to a thermal treatment system. The thermal treatment system produces a discharge of treated solids suitable for disposal and a stream containing liquids (e.g. oil and water).
In certain prior art systems and methods on an offshore rig wet cuttings, produced, e.g., by shale shakers, are mixed with sea water to form a mixture with a desired mud weight and viscosity which, in some aspects, results in a pumpable slurry. The resulting drilling fluid is then fed to a known cuttings reinjection system or to storage. Wet material generally weighs more and can occupy more volume than dry material.
A variety of problems are associated with certain prior art systems and methods which begin with wet drilling material, “wet” being defined as the fluid content of material taken directly from shale shakers. Cohesive bridging and arching of wet material are problems associated with attempts to process wet material to recover reusable drilling fluid.
There has long been a need for an effective and efficient system for treating drilling mixtures to recover reusable fluid and to process cuttings material for transfer and, in some cases, for reinjection into the earth. There has long been a need, recognized by the present inventor, for such systems which deal with dry drill cuttings material so it can be effectively handled and reinjected into the earth and which reduce the volume of cuttings material for ease of handling and economies of scale.
The present invention teaches methods for reclaiming component materials from a drill cuttings mixture of drilling fluid and cuttings material, the methods in certain aspects including: flowing a drill cuttings mixture of drilling fluid and cuttings material to a dryer; producing with the dryer dry cuttings material; and conveying with a conveyor system the dry cuttings material to a secondary system, the conveyor system including a positive pressure pneumatic conveying apparatus for conveying the dry cuttings material to the secondary system.
The present invention teaches systems for separating drilling mixture components and for reinjecting cuttings material into a wellbore, the systems in certain aspects including: a dryer for producing dry cuttings material from a cuttings mixture of drilling fluid and cuttings material, the dryer in certain aspects for reducing in size pieces of material fed to it and, in one aspect, reducing material to powder; and a conveying system for conveying the dry cuttings material to a secondary system, e.g. a thermal treatment system or a reinjection apparatus, the conveying system including positive pressure pneumatic conveying apparatus.
The present invention discloses, in certain embodiments, a wellbore cuttings component reclamation system that processes cuttings material from a wellbore drilling mixture and treats the cuttings material to produce acceptably disposable material (in certain aspects for transfer to a thermal treatment facility and subsequent landfill disposal; or for reinjection, e.g. into a dedicated reinjection well or through an open annulus of a previous well into a fracture, e.g. a fracture created at a casing shoe set in a suitable formation and, in certain aspects, recyclable drilling fluid. Such systems may be land-based or configured for offshore use.
In certain embodiments, a system according to the present invention has cuttings material processed by a dryer, e.g. a vortex dryer, that produces relatively dry material containing primarily drill cuttings material and some drilling fluid. In one aspect “dry” material is material that is a powder-like substance able to be transferred or conveyed in lean (or “dilute”) phase (i.e. substantially all particulates contained in an air stream are airborne), facilitating transfer by a positive pressure pneumatic conveyor. Using a dryer that produces both dried cuttings material and drilling fluid can, according to the present invention, optimize or maximize the reclamation of drilling fluid (“mud”) and minimize the volume of cuttings material to be transported and/or treated prior to disposal. In certain aspects, by passing the cuttings material through a Vortex dryer or similar apparatus, the size of pieces of cuttings material is reduced and the transfer of such material is thereby facilitated; in one aspect, a Vortex dryer produces a powder from input cuttings material. In many instances, additional grinding of the material by an appropriate grinder apparatus facilitates treatment of the material by a shaker. Broken down material is slurrified more easily than relatively larger material; e.g., when, for reinjection, the material is mixed with seawater. By using a dryer that reduces size of material, wear and tear on downstream grinders is reduced. Using a positive pressure pneumatic conveying apparatus, dried cuttings material can be dosed into a treatment facility in a controlled manner.
Accordingly, the present invention includes features and advantages which are believed to enable it to advance drill cuttings conveyance technology. Characteristics and advantages of the present invention described above and additional features and benefits will be readily apparent to those skilled in the art upon consideration of the following detailed description of preferred embodiments and referring to the accompanying drawings.
Certain embodiments of this invention are not limited to any particular individual feature disclosed here, but include combinations of them distinguished from the prior art in their structures, functions, and/or results achieved. Features of the invention have been broadly described so that the detailed descriptions that follow may be better understood, and in order that the contributions of this invention to the arts may be better appreciated. There are, of course, additional aspects of the invention described below and which may be included in the subject matter of the claims to this invention. Those skilled in the art who have the benefit of this invention, its teachings, and suggestions will appreciate that the conceptions of this disclosure may be used as a creative basis for designing other structures, methods and systems for carrying out and practicing the present invention. The claims of this invention are to be read to include any legally equivalent devices or methods which do not depart from the spirit and scope of the present invention.
What follows are some of, but not all, the objects of this invention. In addition to the specific objects stated below for at least certain preferred embodiments of the invention, there are other objects and purposes which will be readily apparent to one of skill in this art who has the benefit of this invention's teachings and disclosures. It is, therefore, an object of at least certain preferred embodiments of the present invention to provide:
New, useful, unique, efficient, non-obvious systems and methods for the reclamation of drilling material components and which treat drill cuttings material to produce conveyable dry drill cuttings material conveyable by positive pressure pneumatic conveying apparatus on land-based or offshore drilling rigs;
Such systems and methods that provide for further treatment and/or processing of relatively dry cuttings material, including, but not limited to reinjection and thermal treatment; and
Such systems and methods that reclaim re-usable re-cyclable drilling fluids.
It will be understood that the various embodiments of the present invention may include one, some, or all of the disclosed, described, and/or enumerated improvements and/or technical advantages and/or elements in claims to this invention.
A more particular description of embodiments of the invention briefly summarized above may be had by references to the embodiments which are shown in the drawings which form a part of this specification. These drawings illustrate certain preferred embodiments and are not to be used to improperly limit the scope of the invention which may have other equally effective or equivalent embodiments.
Presently preferred embodiments of the invention are shown in the above-identified figures and described in detail below. It should be understood that the appended drawings and description herein are of preferred embodiments and are not intended to limit the invention or the appended claims. On the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims. In showing and describing the preferred embodiments, like or identical reference numerals are used to identify common or similar elements. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale or in schematic in the interest of clarity and conciseness.
As used herein and throughout all the various portions (and headings) of this patent, the terms “invention”, “present invention” and variations thereof mean one or more embodiment, and are not intended to mean the claimed invention of any particular appended claim(s) or all of the appended claims. Accordingly, the subject or topic of each such reference is not automatically or necessarily part of, or required by, any particular claim(s) merely because of such reference.
As shown in
A sensor SR on the line A senses moisture content of the material in the line and conveys this information to a control system CS (e.g., but not limited to a control system as disclosed in the co-owned patents and U.S. patent applications listed above) which can shut down flow from the system 12. The control system CS controls the various items, devices and apparatuses in the system 10 and, in one aspect, communicates with a control system CM of a cuttings reinjection system CRI. The control system CS can adjust the flow rate of dried material to a blender 24 using a standard PID algorithm with a setpoint based on acceptable density, feedback for which is obtained from a meter of the CRI system.
Material in a line B is conveyed to the blender 24. Water (or sea water) from a tank 22 is circulated in lines D and C to the blender 24 by a pump 23. The pump 23 pumps liquid from the tank 22 which mixes with the inflowing air flow from the line B in the blender 24. A viscosity/density meter 28 provides the control system CS with information regarding the viscosity and density of the material flowing from the tank 22. The cuttings material and water mix together and are pumped by the pump 23 through a screen 21 into the tank 22 of a first stage 20 of the system 10.
Water (or sea water) as needed is fed into the tank 22 by a pumping system 25. An agitator 26 helps maintain solids in suspension in the tank 22.
Density (and weight) and viscosity of the mixture in the tank 22 are sensed by sensors (e.g. meter 28, sensor ST) which convey sensed levels of density, weight, and viscosity to the control system CS, and, as needed, are adjusted by changing the feed from the system 14 using a control system CS 2 for the system 14 with the control system CS in communication with the control system CS 2. A resulting slurry of the material is pumped by a pump 27 in a line E to a line G to a tank 32 or, optionally, first to a shaker system 34. A control valve 29 selectively controls flow in the line G. When the tank's contents are at an acceptable density and/or viscosity, the valve 29 is opened, flow in Line B ceases, and the tank is emptied into the line G sending a batch of material to the tank 32. The shaker system 34 removes oversize solids returned in a line F back to the tank 22; and drilling fluid with particles of material of an acceptable size (which pass through the shaker's screens) is fed in a line H to the tank 32 of a second stage 30. Sensors SS sense levels of density, weight and viscosity of the material in the tank 32 and convey this information to the control system CS. As needed, weight and viscosity are adjusted. An agitator 36 agitates the contents of the tank 32. A discharge rate of the system 14 is adjustable via adjusting a variable speed metering screw 14a of the system 14.
Drilling fluid is pumped in lines I, J and K by a pump 33 for injection into a wellbore W e.g., for drilling operations employing pumped drilling fluid with valves VA and VB closed and valve VC open. Optionally, the pump 33 pumps material to the cuttings reinjection (“CRI”) system which may include a or several first stage booster pump(s) for a or several triplex pump(s) or similar pump(s) useful in cuttings reinjection.
Optionally, with valves VA and VC closed, the material from the tank 32 is pumped by the pump 33 in the line I, J, L to a storage facility T through valve VB. Optionally with the valves VB and VC closed, the pump 33 pumps material from the tank 32 in the lines I, J, M back into the tank 32 through valve VA for storage and/or further processing.
Any suitable known blender or mixer can be used for the blender 24 (e.g. a high shear mixing unit or mixer). In one aspect, as shown in
As shown in
Optionally, cuttings material from the tank system 180 is fed to a storage system 192 on a vessel 194 from which it is subsequently introduced to a cuttings reinjection system 196 at another site or rig. The system 170 can send the material to the tank system 180 and/or the tank system 180 can send the material to the system 190. The system 100 may have a control system like the system CS,
In one particular aspect the dryer 130 is a vortex dryer, e.g. a commercially available National Oilwell Varco Brandt Vortex Dryer which, optionally, can be flushed with liquid material from the holding tank 150 via lines 201, 202, 203. Via lines 201, 202 and 204 material from the tank 150 is fed to the centrifuge 160. Solids output by the centrifuge 160 flow in a line 205 to a conveyor 206 which transfers the solids in a line 207 to the container 140. The holding tank 150 is a weir tank with a middle weir dividing the tank into two sides 151, 152.
The feed conveyor 110 feeds material in a line 208 to the container 140 and in a line 209 to the dryer 130. Recovered material flows from the dryer 130 to the tank 150 in a line 215. Drilling fluid from the centrifuge 160 flows in a line 211 back to the tank 150. Reusable drilling fluid flows from the tank 150 in a line 212 to a rig mud system 210. Optionally, this fluid flows through a filtration system FL prior to introduction to the system 210. Material in a line 214 from a side 151 of the tank 150 is fed back to the centrifuge in a line 201. Material flows in a line 213 to the line 212. A pump 218 pumps material in the line 201.
The system 170, which receives dry material from the dryer 130, including a positive pressure pneumatic conveying system, including, e.g., those disclosed in the two U.S. patents and the pending U.S. patent application referred to above. Dry material from the dryer 130 is fed by the reversible conveyor 220 to the system 170 in lines 223, 224. A moisture meter 230 measures the moisture level of material from the dryer 230 and, if the material's moisture content exceeds a pre-set level (e.g. 10% by weight)—a level at which conveyance by the positive pressure pneumatic conveying apparatus would be impeded or prevented—the reversible conveyor 220 reverses and the material is fed in the lines 221, 222 to the container 140. In one aspect the dryer is a vortex dryer that produces the dry cuttings material as dry powder in lean phase.
Suitable valves, check valves, filters, flow controllers and controls for them are used on the lines of the system 100.
Dry material from the system 170 is moved, in one aspect, to a suitable storage and processing system, e.g. a tank system 180 which may be any tank or vessel (or tanks or vessels) disclosed in the two U.S. patents and the U.S. patent application referred to above, including a vessel (land-based; on a rig; on a ship) which doses material to an apparatus or system (e.g. to the system 190 or to the system 196). The reinjection systems 190 and 196 may be like that of
In one particular aspect, if the moisture sensor 230 indicates that screens in the dryer 130 are blinding (indicating the moisture content of the material is too high for the conveying system to convey or to effectively convey the material), material from the dryer 130 is directed in the line 222 to the container 140. Optionally, material from the system 170 is fed to a thermal treatment system 197 (from which it can then be transferred to the system 190 or to a transport for transfer to the system 196. As with the transfer of material to the system 190, material can be sent directly from the system 170 to the system 197, or to the system 180 and then to the system 197.
The present invention, therefore, provides in some, but not necessarily all, embodiments a method for reclaiming component materials from a drill cuttings mixture of drilling fluid and cuttings material, the method including: flowing a drill cuttings mixture of drilling fluid and cuttings material to a dryer; producing with the dryer dry cuttings material; and conveying with a conveyor system the dry cuttings material to a secondary system, the conveyor system including a positive pressure pneumatic conveying apparatus for conveying the dry cuttings material to the secondary system. Such a method may include one or some, in any possible combination, of the following: wherein the secondary system is a cuttings reinjection system, the method further including reinjecting the dry cuttings material into a wellbore using the cuttings reinjection system; sensing moisture content of the dry cuttings material; if the moisture content indicates that the dry cuttings material will impede conveyance by the conveyor system, diverting the dry cuttings material away from the positive pressure pneumatic conveying apparatus; producing with the dryer a drilling fluid mixture with some solids from the drill cuttings mixture, and flowing the produced drilling fluid mixture from the dryer with some solids to a holding system; flowing the drilling fluid mixture from the holding system to a rig mud system; flowing drilling fluid mixture from the holding system to a centrifuge for processing by the centrifuge to produce centrifuged solids and centrifuged drilling fluid; flowing the centrifuged drilling fluid to the holding system; the conveyor system including a reversible conveyor, the method further including reversing the reversible conveyor to prevent dry drill solids from the dryer from flowing to the positive pressure conveying apparatus; wherein the secondary system is a thermal treatment system, the method further including treating the dry cuttings material with the thermal treatment system; dosing material from the positive pressure pneumatic conveying apparatus to the secondary system; wherein a primary control system controls operations of the system and a secondary control system controls the cuttings reinjection system, the secondary control system in communication with the primary control system, the method further including adjusting using the primary control system a rate of feed of material to a mixer, and feeding material from the mixer to the cuttings reinjection system; wherein the secondary control system provides density measurements from a density meter to the primary control system, the primary control system taking said measurements into account in said adjusting; wherein the cuttings material includes pieces of material, each piece having a size, the method further including the dryer reducing the size of said pieces; and/or wherein the dryer reduces the pieces to powder.
The present invention, therefore, provides in some, but not necessarily all, embodiments a method for reclaiming component materials from a drill cuttings mixture of drilling fluid and cuttings material, the method including: flowing a drill cuttings mixture of drilling fluid and cuttings material to a dryer; producing with the dryer dry cuttings material; conveying with a conveyor system the dry cuttings material to a reinjection system, the conveyor system including a positive pressure pneumatic conveying apparatus for conveying the dry cuttings material; reinjecting the dry cuttings material into a wellbore using the reinjection system; sensing moisture content of the dry cuttings material; the conveyor system having a reversible conveyor, the method further including if the moisture content of the dry cuttings material is of such a level that conveyance by the conveyor system would be impeded, reversing the reversible conveyor to prevent dry cuttings material from the dryer from flowing to the positive pressure conveying apparatus.
The present invention, therefore, provides in some, but not necessarily all, embodiments a system for separating drilling mixture components and for reinjecting cuttings material into a wellbore, the system including: a dryer for producing dry cuttings material from a cuttings mixture of drilling fluid and cuttings material; a conveying system for conveying the dry cuttings material to a reinjection apparatus, the conveying system having positive pressure pneumatic conveying apparatus; and a thermal treatment apparatus or a reinjection apparatus for reinjecting the dry cuttings material into a wellbore. Such a method may include one or some, in any possible combination, of the following: a moisture sensor for sensing moisture content of the dry cuttings material, and the conveyor system further having a reversible conveyor, the reversible conveyor for feeding the dry cuttings material to the positive pressure pneumatic conveying apparatus and for reversing, if the moisture content of the dry cuttings material is such that conveyance by the positive pressure pneumatic conveying apparatus would be impeded, so that the dry cuttings material do not flow to the positive pressure pneumatic conveying apparatus; a centrifuge for receiving a drilling fluid stream from the dryer, the drilling fluid stream containing reclaimable drilling fluid, and the centrifuge for processing the drilling fluid stream from the dryer producing reusable drilling fluid; and/or wherein the dryer is for reducing in size the size of pieces of cuttings material, in one aspect, to powder.
In conclusion, therefore, it is seen that the present invention and the embodiments disclosed herein are well adapted to carry out the objectives and obtain the ends set forth. Certain changes can be made in the subject matter without departing from the spirit and the scope of this invention. It is realized that changes are possible within the scope of this invention and it is further intended that each element or step recited herein is to be understood as referring to the step literally and/or to all equivalent elements or steps. This specification is intended to cover the invention as broadly as legally possible in whatever form it may be utilized. All patents and applications identified herein are incorporated fully herein for all purposes.
This application is a continuation of U.S. patent application Ser. No. 12/469,851 filed on May 21, 2009, which is a division of U.S. patent application Ser. No. 11/543,301 filed on Oct. 4, 2006 and incorporated by reference herein for all they contain.
Number | Name | Date | Kind |
---|---|---|---|
399616 | Riddle | Mar 1889 | A |
485488 | Cockrell | Nov 1892 | A |
1078380 | Reynolds | Nov 1913 | A |
1139469 | Potter | May 1915 | A |
1304918 | Sweetland | May 1919 | A |
1459845 | Mitchell | Jun 1923 | A |
1830792 | Herrmann | Nov 1931 | A |
1885154 | Strezynski et al. | Nov 1932 | A |
1886174 | Hazeltine | Nov 1932 | A |
1997713 | Boehm | Apr 1935 | A |
2082513 | Roberts | Jun 1937 | A |
2089548 | Frantz et al. | Aug 1937 | A |
2112784 | McNitt | Mar 1938 | A |
2341169 | Wilson et al. | Feb 1944 | A |
2418529 | Stern | Apr 1947 | A |
2578456 | Smith | Dec 1951 | A |
2653521 | Einarsson | Sep 1953 | A |
2711854 | Kjellgren | Jun 1955 | A |
2716493 | Hutchison | Aug 1955 | A |
2750043 | Thompson | Jun 1956 | A |
2895669 | Bobo | Jul 1959 | A |
2919898 | Marwil et al. | Jan 1960 | A |
2926785 | Sander | Mar 1960 | A |
2928546 | Church | Mar 1960 | A |
2938393 | Dunn et al. | May 1960 | A |
2942731 | Soldini | Jun 1960 | A |
2955753 | O'Conor et al. | Oct 1960 | A |
2961154 | Bergey | Nov 1960 | A |
2973865 | Cibula | May 1961 | A |
3012674 | Hoppe | Dec 1961 | A |
3053379 | Roder et al. | Sep 1962 | A |
3064806 | Tapani | Nov 1962 | A |
3070291 | Bergey | Dec 1962 | A |
3219107 | Brown et al. | Nov 1965 | A |
3226989 | Robins | Jan 1966 | A |
3268159 | Kern | Aug 1966 | A |
3302720 | Brandon | Feb 1967 | A |
3498393 | West et al. | Mar 1970 | A |
3605919 | Bromell et al. | Sep 1971 | A |
3629859 | Copland et al. | Dec 1971 | A |
3640344 | Brandon | Feb 1972 | A |
3659465 | Oshima et al. | May 1972 | A |
3716138 | Lumsden | Feb 1973 | A |
3726136 | McKean et al. | Apr 1973 | A |
3795361 | Lee | Mar 1974 | A |
3796299 | Musschoot | Mar 1974 | A |
3855380 | Gordon et al. | Dec 1974 | A |
3874733 | Poundstone et al. | Apr 1975 | A |
3885734 | Lee | May 1975 | A |
3900393 | Wilson | Aug 1975 | A |
3934792 | High et al. | Jan 1976 | A |
3955411 | Lawson, Jr. | May 1976 | A |
3968033 | Illemann et al. | Jul 1976 | A |
3993146 | Poundstone et al. | Nov 1976 | A |
4000074 | Evans | Dec 1976 | A |
4033865 | Derrick, Jr. | Jul 1977 | A |
4038152 | Atkins | Jul 1977 | A |
4082657 | Gage | Apr 1978 | A |
4085888 | Jager | Apr 1978 | A |
4115507 | Pico et al. | Sep 1978 | A |
4116288 | Love | Sep 1978 | A |
4192743 | Bastgen et al. | Mar 1980 | A |
4208906 | Roberts, Jr. | Jun 1980 | A |
4212731 | Wallin et al. | Jul 1980 | A |
4222988 | Barthel | Sep 1980 | A |
4224821 | Taylor et al. | Sep 1980 | A |
4228949 | Jackson | Oct 1980 | A |
4233181 | Goller et al. | Nov 1980 | A |
4240578 | Jackson | Dec 1980 | A |
4297225 | Hartley | Oct 1981 | A |
4298160 | Jackson | Nov 1981 | A |
4298162 | Hohne | Nov 1981 | A |
4298572 | Moffet et al. | Nov 1981 | A |
4306974 | Harry | Dec 1981 | A |
4319482 | Bunner | Mar 1982 | A |
4319991 | Crone, Jr. et al. | Mar 1982 | A |
4322288 | Schmidt | Mar 1982 | A |
4339072 | Hiller | Jul 1982 | A |
4350591 | Lee | Sep 1982 | A |
4369915 | Oberg et al. | Jan 1983 | A |
4378906 | Epper et al. | Apr 1983 | A |
4380494 | Wilson | Apr 1983 | A |
4411074 | Daly | Oct 1983 | A |
4432064 | Barker et al. | Feb 1984 | A |
4446022 | Harry | May 1984 | A |
4459207 | Young | Jul 1984 | A |
4482459 | Shiver | Nov 1984 | A |
4491517 | Janovac | Jan 1985 | A |
4495065 | DeReamer et al. | Jan 1985 | A |
4526687 | Nugent | Jul 1985 | A |
4536286 | Nugent | Aug 1985 | A |
4546783 | Lott | Oct 1985 | A |
4549431 | Soeiinah | Oct 1985 | A |
4553429 | Evans et al. | Nov 1985 | A |
4573115 | Halgrimson | Feb 1986 | A |
4575336 | Mudd et al. | Mar 1986 | A |
4575421 | Derrick et al. | Mar 1986 | A |
4606415 | Gray, Jr. et al. | Aug 1986 | A |
4624417 | Gangi | Nov 1986 | A |
4634535 | Lott | Jan 1987 | A |
4635735 | Crownover | Jan 1987 | A |
4639258 | Schellstede et al. | Jan 1987 | A |
4650687 | Willard et al. | Mar 1987 | A |
4668213 | Kramer | May 1987 | A |
4685329 | Burgess | Aug 1987 | A |
4691744 | Haver et al. | Sep 1987 | A |
4696353 | Elmquist et al. | Sep 1987 | A |
4696751 | Eifling | Sep 1987 | A |
4729548 | Sullins | Mar 1988 | A |
4743226 | Day et al. | May 1988 | A |
4751887 | Terry et al. | Jun 1988 | A |
4770711 | Deal, III et al. | Sep 1988 | A |
4783057 | Sullins | Nov 1988 | A |
4791002 | Baker et al. | Dec 1988 | A |
4793421 | Jasinski | Dec 1988 | A |
4795552 | Yun et al. | Jan 1989 | A |
4799987 | Sullins | Jan 1989 | A |
4805659 | Gunneweg et al. | Feb 1989 | A |
4807469 | Hall | Feb 1989 | A |
4809791 | Hayatdavoudi | Mar 1989 | A |
4832853 | Shiraki et al. | May 1989 | A |
4844106 | Hunter et al. | Jul 1989 | A |
4846352 | Bailey | Jul 1989 | A |
4857176 | Derrick et al. | Aug 1989 | A |
4882054 | Derrick et al. | Nov 1989 | A |
4889733 | Willard et al. | Dec 1989 | A |
4889737 | Willard et al. | Dec 1989 | A |
4895665 | Colelli et al. | Jan 1990 | A |
4895731 | Baker et al. | Jan 1990 | A |
4896835 | Fahrenholz | Jan 1990 | A |
4911834 | Murphy | Mar 1990 | A |
4915452 | Dibble | Apr 1990 | A |
4940535 | Fisher et al. | Jul 1990 | A |
4942929 | Malachosky et al. | Jul 1990 | A |
4961722 | Taylor et al. | Oct 1990 | A |
5010966 | Stokley et al. | Apr 1991 | A |
5053082 | Flanigan et al. | Oct 1991 | A |
5066350 | Sullins | Nov 1991 | A |
5080721 | Flanigan et al. | Jan 1992 | A |
5107874 | Flanigan et al. | Apr 1992 | A |
5109933 | Jackson | May 1992 | A |
5129469 | Jackson | Jul 1992 | A |
5131271 | Haynes et al. | Jul 1992 | A |
5145256 | Wiemers et al. | Sep 1992 | A |
5147277 | Shapiro | Sep 1992 | A |
5156749 | Williams | Oct 1992 | A |
5156751 | Miller | Oct 1992 | A |
5181578 | Lawler | Jan 1993 | A |
5190645 | Burgess | Mar 1993 | A |
5200372 | Kuroyama et al. | Apr 1993 | A |
5203762 | Cooperstein | Apr 1993 | A |
5221008 | Derrick, Jr. et al. | Jun 1993 | A |
5226546 | Janssens et al. | Jul 1993 | A |
5227057 | Lundquist | Jul 1993 | A |
5229018 | Forrest | Jul 1993 | A |
5232099 | Maynard | Aug 1993 | A |
5253718 | Lawler | Oct 1993 | A |
5256291 | Cagle | Oct 1993 | A |
5265730 | Norris et al. | Nov 1993 | A |
5273112 | Schultz | Dec 1993 | A |
5278549 | Crawford | Jan 1994 | A |
5314058 | Graham | May 1994 | A |
5319972 | Oblak et al. | Jun 1994 | A |
5329465 | Arcella et al. | Jul 1994 | A |
5330057 | Schiller et al. | Jul 1994 | A |
5332101 | Bakula | Jul 1994 | A |
5337966 | Francis et al. | Aug 1994 | A |
5370797 | Cagle | Dec 1994 | A |
5378364 | Welling | Jan 1995 | A |
5385669 | Leone, Sr. | Jan 1995 | A |
5392925 | Seyffert | Feb 1995 | A |
5400376 | Trudeau | Mar 1995 | A |
5403260 | Hensely | Apr 1995 | A |
5417793 | Bakula | May 1995 | A |
5417858 | Derrick et al. | May 1995 | A |
5417859 | Bakula | May 1995 | A |
5454957 | Roff | Oct 1995 | A |
5465798 | Edlund et al. | Nov 1995 | A |
5474142 | Bowden | Dec 1995 | A |
5488104 | Schulz | Jan 1996 | A |
5489204 | Conwell et al. | Feb 1996 | A |
5494584 | McLachlan et al. | Feb 1996 | A |
5516348 | Conwell et al. | May 1996 | A |
5534207 | Burrus | Jul 1996 | A |
5547479 | Conwell et al. | Aug 1996 | A |
5566889 | Preiss | Oct 1996 | A |
5567150 | Conwell et al. | Oct 1996 | A |
5570749 | Reed | Nov 1996 | A |
5593582 | Roff, Jr. | Jan 1997 | A |
5597042 | Tubel et al. | Jan 1997 | A |
5626234 | Cook et al. | May 1997 | A |
5632714 | Leung et al. | May 1997 | A |
5636749 | Wojciechowski | Jun 1997 | A |
5638960 | Beuermann et al. | Jun 1997 | A |
5641070 | Seyffert | Jun 1997 | A |
5643169 | Leung et al. | Jul 1997 | A |
5653674 | Leung | Aug 1997 | A |
5662165 | Tubel et al. | Sep 1997 | A |
5669941 | Peterson | Sep 1997 | A |
5681256 | Nagafuji | Oct 1997 | A |
D386874 | Glaun | Nov 1997 | S |
D387534 | Glaun | Dec 1997 | S |
D388583 | Glaun | Dec 1997 | S |
5695442 | Leung et al. | Dec 1997 | A |
5699918 | Dunn | Dec 1997 | A |
D388924 | Glaun | Jan 1998 | S |
5706896 | Tubel et al. | Jan 1998 | A |
5720881 | Derrick et al. | Feb 1998 | A |
5730219 | Tubel et al. | Mar 1998 | A |
5732776 | Tubel et al. | Mar 1998 | A |
5732828 | Littlefield, Jr. | Mar 1998 | A |
5771601 | Veal et al. | Jun 1998 | A |
5772573 | Hao | Jun 1998 | A |
5783077 | Bakula | Jul 1998 | A |
5791494 | Meyer | Aug 1998 | A |
5793705 | Gazis et al. | Aug 1998 | A |
5811003 | Young et al. | Sep 1998 | A |
5814218 | Cagle | Sep 1998 | A |
5814230 | Willis et al. | Sep 1998 | A |
5816413 | Boccabella et al. | Oct 1998 | A |
5819952 | Cook et al. | Oct 1998 | A |
5839521 | Dietzen | Nov 1998 | A |
5857955 | Phillips | Jan 1999 | A |
5861362 | Mayeux et al. | Jan 1999 | A |
5868125 | Maoujoud | Feb 1999 | A |
5868929 | Derrick et al. | Feb 1999 | A |
5876552 | Bakula | Mar 1999 | A |
5896998 | Bjorklund et al. | Apr 1999 | A |
5899844 | Eberle, Sr. | May 1999 | A |
5913767 | Feldkamp et al. | Jun 1999 | A |
5919123 | Phillips | Jul 1999 | A |
5942130 | Leung | Aug 1999 | A |
5944197 | Baltzer et al. | Aug 1999 | A |
5944993 | Derrick et al. | Aug 1999 | A |
5948256 | Leung | Sep 1999 | A |
5948271 | Wardwell et al. | Sep 1999 | A |
5952569 | Jervis et al. | Sep 1999 | A |
5955666 | Mullins | Sep 1999 | A |
5958235 | Leung | Sep 1999 | A |
5958236 | Bakula | Sep 1999 | A |
5971159 | Leone et al. | Oct 1999 | A |
5971307 | Davenport | Oct 1999 | A |
5975204 | Tubel et al. | Nov 1999 | A |
5992519 | Ramakrishnan et al. | Nov 1999 | A |
6000556 | Bakula | Dec 1999 | A |
6012016 | Bilden et al. | Jan 2000 | A |
6013158 | Wootten | Jan 2000 | A |
6021377 | Dubinsky et al. | Feb 2000 | A |
6024228 | Williams | Feb 2000 | A |
6032806 | Leone et al. | Mar 2000 | A |
6045070 | Davenport | Apr 2000 | A |
6053332 | Bakula | Apr 2000 | A |
6062070 | Maltby et al. | May 2000 | A |
6063292 | Leung | May 2000 | A |
6089380 | Hazrati et al. | Jul 2000 | A |
6102310 | Davenport | Aug 2000 | A |
6105689 | McGuire et al. | Aug 2000 | A |
6109452 | Leung et al. | Aug 2000 | A |
6110096 | Leung et al. | Aug 2000 | A |
6123656 | Michelsen | Sep 2000 | A |
6138834 | Southall | Oct 2000 | A |
6143183 | Wardwell et al. | Nov 2000 | A |
6145669 | Leung | Nov 2000 | A |
6155428 | Bailey et al. | Dec 2000 | A |
6161700 | Bakula | Dec 2000 | A |
6165323 | Shearer | Dec 2000 | A |
6170580 | Reddoch | Jan 2001 | B1 |
6173609 | Modlin et al. | Jan 2001 | B1 |
6176323 | Weirich et al. | Jan 2001 | B1 |
6179128 | Seyffert | Jan 2001 | B1 |
6192742 | Miwa et al. | Feb 2001 | B1 |
6192980 | Tubel et al. | Feb 2001 | B1 |
6217830 | Roberts et al. | Apr 2001 | B1 |
6220448 | Bakula et al. | Apr 2001 | B1 |
6220449 | Schulte, Jr. et al. | Apr 2001 | B1 |
6223906 | Williams | May 2001 | B1 |
6233524 | Harrell et al. | May 2001 | B1 |
6234250 | Green et al. | May 2001 | B1 |
6237404 | Crary et al. | May 2001 | B1 |
6237780 | Schulte | May 2001 | B1 |
6267250 | Leung et al. | Jul 2001 | B1 |
6279471 | Reddoch | Aug 2001 | B1 |
D448488 | Chaffiotte et al. | Sep 2001 | S |
6283302 | Schulte et al. | Sep 2001 | B1 |
6290636 | Hiller, Jr. et al. | Sep 2001 | B1 |
6308787 | Alft | Oct 2001 | B1 |
6315894 | Wiemers et al. | Nov 2001 | B1 |
6333700 | Thomeer et al. | Dec 2001 | B1 |
6346813 | Kleinberg | Feb 2002 | B1 |
6349834 | Carr et al. | Feb 2002 | B1 |
6352159 | Loshe | Mar 2002 | B1 |
6356205 | Salvo et al. | Mar 2002 | B1 |
6367633 | Douglas | Apr 2002 | B1 |
6368264 | Phillips et al. | Apr 2002 | B1 |
6371301 | Schulte et al. | Apr 2002 | B1 |
6371306 | Adams et al. | Apr 2002 | B2 |
6378628 | McGuire et al. | Apr 2002 | B1 |
6393363 | Wilt et al. | May 2002 | B1 |
6399851 | Siddle | Jun 2002 | B1 |
6408953 | Goldman et al. | Jun 2002 | B1 |
6412644 | Crabbe et al. | Jul 2002 | B1 |
6429653 | Kruspe et al. | Aug 2002 | B1 |
6431368 | Carr | Aug 2002 | B1 |
6438495 | Chau et al. | Aug 2002 | B1 |
6439391 | Seyffert | Aug 2002 | B1 |
6439392 | Baltzer | Aug 2002 | B1 |
6461286 | Beatley | Oct 2002 | B1 |
6474143 | Herod | Nov 2002 | B1 |
6484088 | Reimer | Nov 2002 | B1 |
6485640 | Fout et al. | Nov 2002 | B2 |
6505682 | Brockman | Jan 2003 | B2 |
6506310 | Kulbeth | Jan 2003 | B2 |
6510947 | Schulte et al. | Jan 2003 | B1 |
6513664 | Logan et al. | Feb 2003 | B1 |
6517733 | Carlson | Feb 2003 | B1 |
6519568 | Harvey et al. | Feb 2003 | B1 |
6530482 | Wiseman | Mar 2003 | B1 |
6536540 | deBoer | Mar 2003 | B2 |
6553316 | Bary et al. | Apr 2003 | B2 |
6553336 | Johnson et al. | Apr 2003 | B1 |
6575304 | Cudahy | Jun 2003 | B2 |
6581455 | Berger et al. | Jun 2003 | B1 |
6600278 | Bretzius | Jul 2003 | B1 |
6601709 | Schulte et al. | Aug 2003 | B2 |
6605029 | Koch et al. | Aug 2003 | B1 |
6662952 | Adams et al. | Dec 2003 | B2 |
6669027 | Mooney et al. | Dec 2003 | B1 |
6679385 | Suter et al. | Jan 2004 | B2 |
6691025 | Reimer | Feb 2004 | B2 |
6692599 | Cook et al. | Feb 2004 | B2 |
6693553 | Ciglenec et al. | Feb 2004 | B1 |
6715612 | Krystof | Apr 2004 | B1 |
6722504 | Schulte et al. | Apr 2004 | B2 |
6746602 | Fout et al. | Jun 2004 | B2 |
6763605 | Reddoch | Jul 2004 | B2 |
6766254 | Bradford et al. | Jul 2004 | B1 |
6769550 | Adams et al. | Aug 2004 | B2 |
6780147 | Koch et al. | Aug 2004 | B2 |
6783088 | Gillis et al. | Aug 2004 | B1 |
6783685 | Huang | Aug 2004 | B2 |
6790169 | Koch et al. | Sep 2004 | B2 |
6793814 | Fout et al. | Sep 2004 | B2 |
6808626 | Kulbeth | Oct 2004 | B2 |
6825136 | Cook et al. | Nov 2004 | B2 |
6827223 | Colgrove et al. | Dec 2004 | B2 |
6838008 | Fout et al. | Jan 2005 | B2 |
6860845 | Miller et al. | Mar 2005 | B1 |
6863183 | Schulte et al. | Mar 2005 | B2 |
6863809 | Smith et al. | Mar 2005 | B2 |
6868920 | Hoteit et al. | Mar 2005 | B2 |
6868972 | Seyffert et al. | Mar 2005 | B2 |
6873267 | Tubel et al. | Mar 2005 | B1 |
6892812 | Niedermayr et al. | May 2005 | B2 |
6896055 | Koithan | May 2005 | B2 |
6899178 | Tubel | May 2005 | B2 |
6905452 | Kirsch | Jun 2005 | B1 |
6907375 | Guggari et al. | Jun 2005 | B2 |
6926101 | deBoer | Aug 2005 | B2 |
6932169 | Wylie et al. | Aug 2005 | B2 |
6932757 | Beattey | Aug 2005 | B2 |
6971982 | Kirsch | Dec 2005 | B1 |
6981940 | Rafferty | Jan 2006 | B2 |
7001324 | Hensley et al. | Feb 2006 | B2 |
7018326 | Koch et al. | Mar 2006 | B2 |
7041044 | Gilbert | May 2006 | B2 |
D524825 | Koch et al. | Jul 2006 | S |
7093678 | Risher et al. | Aug 2006 | B2 |
7144516 | Smith | Dec 2006 | B2 |
7175027 | Strong et al. | Feb 2007 | B2 |
7195084 | Burnett et al. | Mar 2007 | B2 |
7198156 | Schulte et al. | Apr 2007 | B2 |
7216767 | Schulte et al. | May 2007 | B2 |
7216768 | Fisher et al. | May 2007 | B2 |
7228971 | Mooney et al. | Jun 2007 | B2 |
7264125 | Lipa | Sep 2007 | B2 |
7284665 | Fuchs | Oct 2007 | B2 |
7303079 | Reid-Robertson et al. | Dec 2007 | B2 |
7306057 | Strong et al. | Dec 2007 | B2 |
7316321 | Robertson et al. | Jan 2008 | B2 |
7337860 | McIntyre | Mar 2008 | B2 |
7373996 | Martin et al. | May 2008 | B1 |
7387602 | Kirsch | Jun 2008 | B1 |
7484574 | Burnett et al. | Feb 2009 | B2 |
7514011 | Kulbeth | Apr 2009 | B2 |
7540837 | Scott et al. | Jun 2009 | B2 |
7540838 | Scott et al. | Jun 2009 | B2 |
7581569 | Beck | Sep 2009 | B2 |
7770665 | Eia et al. | Aug 2010 | B2 |
20010032815 | Adams et al. | Oct 2001 | A1 |
20020000399 | Winkler et al. | Jan 2002 | A1 |
20020018399 | Schultz et al. | Feb 2002 | A1 |
20020033278 | Reddoch | Mar 2002 | A1 |
20020033358 | Bakula | Mar 2002 | A1 |
20020035551 | Sherwin et al. | Mar 2002 | A1 |
20020065698 | Schick et al. | May 2002 | A1 |
20020112888 | Leuchtenberg | Aug 2002 | A1 |
20020134709 | Riddle | Sep 2002 | A1 |
20030015351 | Goldman et al. | Jan 2003 | A1 |
20030038734 | Hirsch et al. | Feb 2003 | A1 |
20030109951 | Hsiung et al. | Jun 2003 | A1 |
20030220742 | Niedermayr et al. | Nov 2003 | A1 |
20040040746 | Niedermayr et al. | Mar 2004 | A1 |
20040051650 | Gonsoulin et al. | Mar 2004 | A1 |
20040156920 | Kane | Aug 2004 | A1 |
20040245155 | Strong et al. | Dec 2004 | A1 |
20050067327 | Adams et al. | Mar 2005 | A1 |
20050103689 | Schulte, Jr. et al. | May 2005 | A1 |
20050236305 | Schulte, Jr. et al. | Oct 2005 | A1 |
20050255186 | Hiraga | Nov 2005 | A1 |
20060019812 | Stalwick | Jan 2006 | A1 |
20060034988 | Bresnahan et al. | Feb 2006 | A1 |
20060081508 | Astleford et al. | Apr 2006 | A1 |
20060102390 | Burnett et al. | May 2006 | A1 |
20060105896 | Smith et al. | May 2006 | A1 |
20060144779 | Bailey | Jul 2006 | A1 |
20070108106 | Burnett | May 2007 | A1 |
20070131592 | Browne et al. | Jun 2007 | A1 |
20080078697 | Carr | Apr 2008 | A1 |
20080078702 | Carr et al. | Apr 2008 | A1 |
20080078704 | Carr et al. | Apr 2008 | A1 |
20080093269 | Timmerman et al. | Apr 2008 | A1 |
20080179090 | Eia et al. | Jul 2008 | A1 |
20080179096 | Eia et al. | Jul 2008 | A1 |
20080179097 | Eia et al. | Jul 2008 | A1 |
20090071878 | Bosse | Mar 2009 | A1 |
20090105059 | Dorry et al. | Apr 2009 | A1 |
20090178978 | Beebe et al. | Jul 2009 | A1 |
20090242466 | Burnett et al. | Oct 2009 | A1 |
20090272535 | Burns et al. | Nov 2009 | A1 |
20090286098 | Yajima et al. | Nov 2009 | A1 |
20090316084 | Yajima et al. | Dec 2009 | A1 |
20100084190 | Eia et al. | Apr 2010 | A1 |
20100089802 | Burnett | Apr 2010 | A1 |
20100101783 | Vinegar et al. | Apr 2010 | A1 |
20100119570 | Potter et al. | May 2010 | A1 |
20100237024 | Carr et al. | Sep 2010 | A1 |
20130067762 | Burnett | Mar 2013 | A1 |
Number | Date | Country |
---|---|---|
3819462 | May 1990 | DE |
4127929 | Feb 1993 | DE |
289668 | Nov 1988 | EP |
2 611 559 | Sep 1988 | FR |
2 636 669 | Mar 1990 | FR |
1 526 663 | Sep 1978 | GB |
2 030 482 | Apr 1980 | GB |
1 578 948 | Nov 1980 | GB |
2 176 424 | Dec 1986 | GB |
2 327 442 | Jan 1999 | GB |
2 408 006 | Apr 2007 | GB |
2448683 | Oct 2008 | GB |
55112761 | Aug 1980 | JP |
59069268 | Apr 1984 | JP |
63003090 | Jan 1988 | JP |
63283860 | Nov 1988 | JP |
63290705 | Nov 1988 | JP |
02127030 | May 1990 | JP |
02167834 | Jun 1990 | JP |
03240925 | Oct 1991 | JP |
03264263 | Nov 1991 | JP |
04093045 | Mar 1992 | JP |
04269170 | Sep 1992 | JP |
05043884 | Feb 1993 | JP |
05301158 | Nov 1993 | JP |
06063499 | Mar 1994 | JP |
07304028 | Nov 1995 | JP |
08039428 | Feb 1996 | JP |
08270355 | Oct 1996 | JP |
09109032 | Apr 1997 | JP |
10337598 | Dec 1998 | JP |
WO9608301 | Mar 1996 | WO |
WO9633792 | Mar 1996 | WO |
WO9810895 | Mar 1998 | WO |
WO9816328 | Mar 1998 | WO |
WO 9838411 | Sep 1998 | WO |
WO0249778 | Jun 2002 | WO |
WO03055569 | Jul 2003 | WO |
WO2004110589 | Dec 2004 | WO |
WO2005107963 | Nov 2005 | WO |
WO2007070559 | Jun 2007 | WO |
WO 2008042844 | Apr 2008 | WO |
WO 2008050138 | May 2008 | WO |
WO2009048783 | Apr 2009 | WO |
Entry |
---|
International Search Report from PCT/GB2011/050975 dated Nov. 15, 2012. |
U.S. Appl. No. 12/785,735 Office Action dated Dec. 9, 2011. |
U.S. Appl. No. 12/490,492 Office Action dated Oct. 7, 2011. |
U.S. Appl. No. 12/481,959 Final Office Action dated Oct. 27, 2010. |
U.S. Appl. No. 12/481,959 Office Action dated Jun. 7, 2010. |
U.S. Appl. No. 12/469,851 Final Office Action dated Nov. 9, 2010. |
U.S. Appl. No. 12/469,851 Office Action dated Jun. 28, 2010. |
U.S. Appl. No. 12/321,358 Final Office Action dated Jan. 18, 2012. |
U.S. Appl. No. 12/321,358 Office Action dated Aug. 29, 2011. |
U.S. Appl. No. 12/287,716 Office Action dated Jun. 17, 2011. |
U.S. Appl. No. 12/287,709 Office Action dated Mar. 29, 2011. |
U.S. Appl. No. 12/231,293 Office Action dated Sep. 13, 2011. |
U.S. Appl. No. 12/228,670 Office Action dated Jun. 20, 2011. |
U.S. Appl. No. 12/227,462 Final Office Action dated May 26, 2011. |
U.S. Appl. No. 12/227,462 Office Action dated Nov. 15, 2010. |
U.S. Appl. No. 12/008,980 Office Action dated Aug. 31, 2011. |
U.S. Appl. No. 12/008,980 Office Action dated Apr. 5, 2011. |
U.S. Appl. No. 12/001,479 Final Office Action dated Oct. 31, 2011. |
U.S. Appl. No. 12/001,479 Office Action dated Jun. 8, 2011. |
U.S. Appl. No. 11/897,976 Final Office Action dated Sep. 1, 2010. |
U.S. Appl. No. 11/897,976 Office Action dated Apr. 1, 2010. |
U.S. Appl. No. 11/897,975 Office Action dated Jun. 8, 2012. |
U.S. Appl. No. 11/897,975 Final Office Action dated Aug. 12, 2011. |
U.S. Appl. No. 11/897,975 Office Action dated Mar. 1, 2011. |
U.S. Appl. No. 11/897,975 Final Office Action dated Jul. 21, 2010. |
U.S. Appl. No. 11/897,975 Office Action dated Feb. 19, 2010. |
U.S. Appl. No. 11/637,615 Final Office Action dated Nov. 16, 2011. |
U.S. Appl. No. 11/637,615 Office Action dated Jul. 21, 2011. |
U.S. Appl. No. 11/637,615 Final Office Action dated Aug. 2, 2010. |
U.S. Appl. No. 11/637,615 Office Action dated Mar. 2, 2010. |
International Search Report and Written Opinion from PCT/GB2008/050761 dated Sep. 17, 2009. |
International Search Report and Written Opinion from PCT/GB2010/051050 dated Jan. 30, 2012. |
EP Application No. 07 733 775.6 EPC Communication dated Dec. 9, 2010. |
Polyamide 6/6—Nylon 6/6—PA 6/6 60% Glass Fibre Reinforced, Data Sheet [online], AZoM™, The A to Z of Materials and AZojomo, The “AZo Journal of Materials Online” [retrieved on Nov. 23, 2005] (2005) (Retrieved from the Internet: <URL: http://web.archive.org/web/20051123025735/http://www.azom.com/details.asp?ArticleID=493>. |
Adams et al., “The Advanced Technology Linear Separator Model ATL-1000,” Drexel Oilfield Services, STC 03, 18 pages (1991). |
AMS 2000 Description, Thule Rigtech, Rig Technology, 18 pages (2000). |
Automated Chemical Additive System, Thule Rigtech, Rig Technology Ltd., 4 pages (2000). |
Brandt Automated Shaker Control, Varco, 1 page (2002). |
Brandt®, A Varco Company, King Cobra Series, Installation, Operation, and Maintenance Manual, M12444 R5, 65 pages (2003). |
Brandt®, A Varco Company, LCM-2D LP Installation and Operation Manual, 84 pages (1998). |
Brandt et al., Mud Equipment Manual—Handbook 3: Shale Shakers, Gulf Pub. Co., 18 pages (1982). |
The Derrick LP Sandwich Shaker, Derrick Equipment Company, 4 pages (1981). |
Fluid Systems Inc., The Prodigy Series I™ Dynamic Control Shaker, 2 pages (Apr. 27, 2004). |
Sweco® Oilfield Services, LM-3 Full-Flo™ Shale Shaker, 4 pages (1991). |
Axiom Ax-1 Shaker Brochure, 24 pages (2010). |
Brandt, VSM-300™ Shaker Brochure, 4 pages (2001). |
Brandt, VSM-Ultra Shaker Brochure, 2 pages (2003). |
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20130067762 A1 | Mar 2013 | US |
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Parent | 11543301 | Oct 2006 | US |
Child | 12469851 | US |
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Parent | 12469851 | May 2009 | US |
Child | 13658269 | US |