The present invention relates generally to therapeutic body massage devices, and more particularly to a self-administrable massage apparatus for the relief of tender and painful connective tissue and muscular conditions, including but not limited to trigger points. The length and positioning of the massage device are adjustable to meet the therapy needs of the individual.
Myofascial pain often results from muscle injury or repetitive strain. When stressed or injured, muscle tissue (myo) that is surrounded by connective tissue (fascia) can form trigger points, akin to contracted knots, which cause tightness, pain, and/or muscle weakness. Individuals can be predisposed to trigger point formation due to many factors, including poor posture, repetitive stress, inactivity, muscular de-conditioning, nutritional deficiencies, or mechanical imbalances, such as unequal leg length. Trigger points can be active or latent, with active trigger points typically causing an active episode of dull or sharp pain and latent trigger points causing discomfort when compressed.
Treatment of a trigger point involves unlocking the contraction mechanism of the muscle (sarcomere) that is locked into a shortened position. Trigger point pressure release typically requires applying pressure with a finger or other instrument to the trigger point and increasing the pressure as the trigger point “releases” and softens. The goal is to adjust the level of pressure applied at the appropriate juncture to cause the release without causing pain or further injury. The therapist providing treatment is typically applying a relatively high amount of pressure for a sustained period and relies on the patient to tell the practitioner if an unacceptable amount of pain is applied. However, the vocalization by the patient usually takes places after excessive pain has already been applied; thus, in some instances, treatment by a therapist can lead to an inadvertent application of excessive force which can lead to pain, discomfort, and even injury. To prevent such injury, many therapists will take a full medical and pain history and evaluate the patient's pain map for referred pain patterns prior to hands-on treatment.
Since the individual possesses first-hand knowledge about the level of pain experienced when a trigger point is touched on his or her body, it is advantageous and desirable for the individual to self-administer therapy and apply and then adjust the amount of pressure to facilitate the release or softening of a trigger point. The prior art teaches various self-administered massage devices, including many that utilize a ball or spherical object to be applied to a body site. A ball's rounded contours are well-suited to application on trigger points. However, because of this very shape, a ball tends to roll away from the target tissue site and is difficult to keep in place to apply sustained pressure to cause myofascial release. The prior art also teaches various massage sticks including percussive massage devices, spiked rollers, and other tools where the user strikes a muscle, rolls a body part such as the foot over the device, or otherwise exerts force against a target body site.
These massage products work superficially and are not particularly suited for intensive targeted massage required for trigger point release. A common shortcoming of these prior art devices is that attempting to apply therapy to one area of the body may result in an undesirable contraction or tension in another part of the user, such as in the hands, arms, and/or neck. Thus, the exertion of direct manual force in order to release the trigger point may cause tension and may prevent the user from relaxing the body or muscles to effectuate a release or softening of the trigger point. As evidenced by the occupational injuries that are common to massage therapists, achieving therapeutic effects through myofascial trigger point release or other massage therapy modalities requires strength and is generally taxing on the hands, arms, and on other parts of the body since trigger point release typically entails sustained application of a relatively high level of pressure. In order to achieve targeted and intensive massage for therapeutic effects, individuals have traditionally sought professional help from professional massage therapists, physical therapists, and other medical professionals. There is a continuing need for a self-administered massage tool that an individual can adjust, calibrate, and position accurately and precisely on trigger points that occur throughout the body, while at the same time, providing a sustained level of deep pressure required to release and soften the points.
The present invention solves the long-standing needs of providing a self-administrable massage tool that provides user-adjustable targeted therapy in a precise and accurate manner to release trigger points throughout the body. The present invention includes an adjustable shaft that can access all points on both sides of the body and that allows an individual to place a pressure accessory element of the massage tool between the body and a flat surface. It provides a tool for leveraging the weight of the body to apply sustained pressure to a treatment site with minimal effort without taxing other parts of the body and without the pressure accessory element dislodging from the treatment site.
In one aspect, the present invention provides an adjustable massage appliance that includes an extendable and retractable shaft made of two or more concentric tubular segments. The shaft has a proximal shaft end and a distal shaft end opposite the proximal shaft end, a handle connected to the proximal shaft end and a pressure accessory connected to the distal shaft end. In certain embodiments, the pressure accessory is a ball having a diameter in the range of 60 mm to 80 mm. In other embodiments, the ball has an average Shore durometer in the range from 30 to 90.
In a second aspect, the present invention is directed to a massage system comprising an adjustable massage appliance having the features discussed above, a handle connected to the proximal shaft end, and a pressure accessory connected to the distal shaft end. The distal shaft end comprises distal end threading configured to engage a pressure accessory threading connected to the pressure accessory. Further, the massage system comprises a pressure accessory that is replaceably detachable from the proximal shaft end and the pressure accessory is replaceably attachable to the handle. An end of the handle comprises threading is configured to engage the pressure accessory threading connected to the pressure accessory.
In a third aspect, the present invention is directed to a method of self-administering massage therapy on a body or limb. The method includes providing an extendable massage appliance made of an extendable and retractable shaft having a proximal shaft end and a distal shaft end opposite the proximal shaft end. A handle is connected to the proximal shaft end, and a ball is connected to the distal shaft end. The extendable and retractable shaft is extended to a desired length and the ball is positioned proximate to a muscle targeted for massage therapy while holding the handle. The weight of the user's body or limb is applied to press the targeted muscle against a surface of the ball. In an embodiment, the weight of the body or limb is shifted into the targeted muscle by incremental movement of the body or limb against the ball to vary an amount of pressured placed on the targeted muscle by the ball. The length of the extendable and retractable shaft may be adjusted to a second desired length and the ball is positioned proximate to a second muscle targeted for therapy while holding the handle. The second muscle is pressed towards the ball and the surface, thereby applying pressure to the ball.
As detailed below, the present invention provides an adjustable, self-administered massage device, a massage system, and a method of administering massage therapy whereby the user may control the location and amount of pressure on a muscle and is able to massage the muscle more thoroughly than a massage therapist would be able to work. The duration of use is also determined by the user. The tool can be used on a general area or for a specific trigger point. As used herein, trigger points are involuntary tight tender spots in a contracted muscle that may result in pain and/or dysfunction within the muscle. These tender spots or knots may develop when a muscle is overused or injured a contraction develops and knots occur. These knots develop when individual muscle fibers are over-stimulated and unable to release their contracted state.
Referring now to the figures, an exemplary embodiment of an adjustable massage appliance of the present invention is shown in
The appliance comprises an extendable and retractable shaft having a proximal shaft end and a distal shaft end opposite the proximal shaft end. In certain embodiments, the shaft comprises two or more concentric tubular segments. The extendable shaft allows the user to place the ball in the exact position desired positioning without rolling away as other ball therapy balls do. Once the ball is placed under the body, it remains in place until the user moves it to another spot. In contrast, prior art massage balls are not fixed so when the ball is under the body and can move unexpectedly during use. Typical massage balls are difficult to place under the body in the exact spot needed because a person cannot reach all the areas of the body for placement. In contrast, the handle and shaft of the present invention allow for easy placement of the ball against the user while they are on the floor or against a wall. In certain embodiments, once the ball or other pressure accessory is placed in the desired position, the handle may be released and the hand and arm placed in a position alongside the body so that exertion by the arm or hand can be minimized and facilitate relaxation without manual application of direct pressure.
The extendable and retractable shaft is configured to extend, in certain embodiments, to a length of 4 feet, which accommodates adults up to 7 feet tall and allows reach of target muscle groups all over the body while holding the handle of the device of the present invention. The fully extended device can range from 3.5 feet to 4.5 feet. When retracted, the device is 10 to 14 inches in length and in some embodiments, 1 foot in length, making the device compact and portable. The tubular segments independently have a wall thickness in the range from 0.02 inches to 0.2 inches and in some embodiments 0.08 to 0.15 inches and in certain other embodiments, 0.1 inches. The shaft may be constructed of pure metal such as copper or aluminum, metal alloys such as stainless steel, chromium molybdenum alloys, or carbon fiber, plastic polymers such as ABS plastic, reinforced polymers including fiber reinforced plastics, composite materials, or other materials providing mechanical strength characteristics such as tensile strength, ductility, flexural strength or toughness to resist breakage or bending a fabricated as the tubular concentric segments that comprise the shaft of the present invention. In certain embodiments, the tubular segments of the retractable shaft are made of stainless steel. To facilitate mating with other elements of the appliance, as discussed in detail below, the distal shaft end comprises a distal end threading such as screw threads configured to engage with and mate with pressure accessory threading connected to the pressure accessory.
Without wishing to be bound by theory, the shaft of the device of the present invention, to which a ball is attached on one end and a handle on the other end, provides the mechanical advantage of levers. In general, a lever is a simple machine. The lever pivots on a fulcrum and produces an output (lifts a load) by exerting an output force on the load. Just as bones act as lever arms, joints act as pivots, and muscles provide the effort forces to move loads, the shaft of the devices of the present invention provides sturdy, length-adjustable support as the plank that provides the leverage required to make a big physical impact on a targeted muscle with minimal effort on the part of the user. In addition, once in place, this lever also prevents the ball from rolling away from the targeted area until the user decides to do so with minimal effort. By shifting or sliding the shaft using the handle, the user can position the ball to a new muscle site. This is also true when the ball is pressed between the body and a vertical surface such as a wall. By positioning and repositioning the ball incrementally on a series or cluster or trigger points, the user can treat an entire anatomical area, such as the upper back, which can consist of multiple trigger points needing release.
The pressure accessory contacts the targeted muscle and thus, in certain embodiments, it is desirable that it provide a firm but comfortable feel when applied to a person, particularly when a therapeutic level of pressure is applied. The pressure accessory comprises a material selected from the list consisting of natural rubber, synthetic rubber, silicone, elastomer, polymer, wood, and plastic.
In certain embodiments, the ball can attach to a screw or other fastening mechanism on a distal end of a handle in applications where it is desired that the ball or other pressure accessory be directly attached to the handle so that the device may be used without a shaft component. For example, in certain embodiments, a shaftless device that comprises a handle directly attached to a pressure accessory can be used for short range treatment applications such as the inside of the forearm area of the body. To allow for versatility in attaching the pressure accessory to either a shaft end or a handle end, the present invention provides that the pressure accessory is replaceably detachable from the distal shaft end or the handle end. Similarly, in certain embodiments, the handle is replaceably detachable from the proximal shaft end. The proximal shaft end comprises a proximal end threading configured to engage the handle which has a mounting hole into which the proximal shaft end is screwed. In certain embodiments, the handle may be removed and one pressure accessory attached to one end of a shaft and a second pressure accessory attached to a second end of the same shaft such that the device is a shaft with two ball attachments.
The shaft of the present invention is telescopic in that it comprises two or more concentric tubular members of differing diameters, which allows for the insertion of each of the sequential concentric tubular segment of one diameter into one having a larger diameter. The concentric tubular segments of the shaft may be retracted or extended with respect to one another fully or partially, allowing the user to change the length of the device as needed. In certain embodiments, the shaft comprises at least two interlocking concentric tubular segments. The interlocking concentric tubular segments comprise interlocking stop ends at the distal end of each concentric tubular segment. The interlocking stop end 21 of device 100 of
In certain embodiments, each of the concentric tubular members is a hollow tube having a wall thickness of 0.06 inches and in some embodiments a wall thickness between 0.02 to 0.2 inches. For an embodiment in which the concentric tubular members comprise stainless steel, a wall thickness of between 0.02 and 0.2 inches provides a surprising combination of mechanical strength and resistance to bending or kinking to support adults having a body weight between 100 and 500 lbs. As would be appreciated, based on the shaft material, the wall thickness may be thicker or thinner and when fully extended, the shaft comprises a length of 3.5 to 4.5 feet. Although the illustrated embodiment of the tool has seven concentric tubular members, certain embodiments have 6 concentric tubular members, other embodiments have 5 concentric tubular members, yet other embodiments have 4 concentric tubular members, and another embodiment has 3 concentric tubular members. When the tool is in the extended position, it is locked into that state due to the friction of the snugly engaged concentric tubular members against each other to prevent inadvertent retraction of the shaft. In certain embodiments, the concentric tubular member proximal to the handle 130 includes an end plug.
The pressure accessory may comprise a ball 110, as shown in the embodiment of
In certain embodiments, the ball or other pressure accessory has a diameter in the range from 60 mm to 80 mm. In certain embodiments, the ball is 68 mm, which the inventor has discovered through extensive testing, is an especially suitable size for most adults. In one embodiment, the ball is 68 mm and is made of a synthetic rubber. Such size provides the advantage that when the user bears his weight on the ball which is placed between the back and a floor surface, for example, the ball is of sufficient diameter that the weight of the user is distributed over the area of the ball to provide firm yet comfortable pressure against the back. In other embodiments, it is desirable that the pressure accessory is a ball small enough to rest comfortably in certain contoured areas or concavities of the body, such as in the upper back adjacent to the shoulder blade.
In certain embodiments, the ball size is 60 mm to accommodate the anatomy of a child or a person with a slight build. However, a ball accessory having a diameter smaller than 60 mm would likely not provide enough space between the user and the floor or wall surface since it is desired that the diameter of the ball be greater than the height of the arch of the user's back. As discovered by the inventor, targeted and therapeutic pressure is facilitated when the size of the ball is at least equal to or greater than the height of the arch of the back of the user, such arch distance being measured when the user is lying on the floor with the back against the ground. In one embodiment, a ball having a diameter of 68 mm is a suitable size for most adults. Through extensive testing of a myriad of ball diameters, the inventor has discovered that if the diameter of the ball is less than the height of the arch of the user's back, the user may experience the ball as pointy, sharp, or otherwise, uncomfortable or painful. While not wishing to be bound by theory, it is believed that for balls having a diameter less than 60 mm, for most adults, the ball does not have enough surface area to distribute the user's weight evenly, resulting in a pressure as measured in pounds per inch that is too high to be comfortable.
In certain embodiments, the invention is directed to a kit comprising at least two pressure accessories comprising two balls. In certain embodiments, the first ball accessory has a diameter of 60 mm and the second ball accessory has a diameter between 65 mm and 80 mm. In other embodiments, the kit comprises two balls, the first ball having a diameter of 68 mm and the second ball having a diameter between 70 to 80 mm or has a diameter of 75 mm. In some embodiments, the two pressure accessories have the same or different Shore durometer values. In one embodiment, a first ball having a diameter less than 68 mm has a Shore durometer value that is less than a ball accessory having a diameter of 68 mm, 70 mm, 75, mm, or 80 mm. The ball may have an average Shore durometer in the range of 30 to 100. Through extensive testing, the inventor has discovered that a Shore durometer of 70 for a ball having a diameter of 80 mm provides excellent therapeutic pressure that effectuates trigger point release. Through testing, the inventor has discovered that a Shore durometer value of 30 provides inadequate firmness and support to mimic a therapist's manual application of pressure to effectuate trigger point release. A ball having a Shore durometer of 90 or even 100 generally result in excessive hardness as perceived by the user when used as a pressure accessory for the device of the present invention.
The pressure accessory may be constructed of a single material and have a uniform physical or mechanical characteristic, such as hardness or softness as measured by Shore durometer values. The ball or other pressure accessory may be solid, a matrix that is part solid and part porous such as cork, or air-filled such as an inflatable extruded plastic. The ball or other pressure accessory may alternatively be constructed of one material on its outer surface with a second material for its bulk interior. One or more of the materials used to construct the pressure accessory may have a smooth surface or surface protrusions, irregularities, contouring, or other texturing to provide a desired level of friction, strength, hardness, and/or elasticity. In certain embodiments, the ball or other pressure accessory comprises at least one material selected from the group consisting of a plastic, elastomer, foam, EVA polymer, polyurethane foams, sponges, synthetic or natural rubber, silicone, siliconized rubber, vulcanized rubber, biodegradable polymers, synthetic or genuine leather, rubber or leather composites, compressed paper, fabric, and surface-treated polymerics.
In certain applications, it may be desirable to have relatively softer or harder materials to provide fine-tuned pressure applications to trigger points within the body. As such, the outer surface of the pressure accessory can be a laminate or composite or have discrete and/or continuous sections made of two materials having the same or different Shore durometer values. In one embodiment, the ball may comprise a first region and a second region and the first and second region each independently comprise at least 10% of the outer surface of the pressure accessory. The first region may have a first average Shore durometer and the second region have a second average Shore durometer. The difference between the first and second average Shore durometers, in one embodiment, is greater than 10. In other embodiments, the outer surface of the pressure accessory comprises a plurality of protrusions in the form of, for example, half-spheres, rounded bumps, nubs, or spikes, wherein the protrusions have a first average Shore durometer, the pressure accessory has a second average Shore durometer, and the difference between the first and second average Shore durometers is greater than 10.
Although there can be as few as two concentric tubular segments, as shown in
An exploded view of the interlocking stop ends 26, 27 of adjacent concentric tubular segments is shown in
A three-dimensional perspective view of the device 100 in its fully retracted and fully extended states is shown in
In another aspect, the present invention is directed to a massage system kit comprising an adjustable massage appliance having the features discussed above, a handle connected to the proximal shaft end, and a pressure accessory connected to the distal shaft end. The distal shaft end comprises distal end threading configured to engage a pressure accessory threading connected to the pressure accessory. Further, the massage system comprises a pressure accessory that is replaceably detachable from the proximal shaft end and the pressure accessory is replaceably attachable to the handle. An end of the handle comprises threading is configured to engage the pressure accessory threading connected to the pressure accessory. The massage system may or may not include a second accessory having a second pressure accessory threading configured to engage a distal shaft end threading or a distal end threading of the pressure accessory. If the device has two pressure accessories, in certain embodiments, the first pressure accessory is a ball having a first diameter, the second pressure accessory is a ball having a second diameter, and the first diameter is more than 20% different than the second diameter. Further, in certain embodiments, instead of or in addition to a difference in diameter, the device may comprise two balls of different Shore durometer values, where the first ball has a first average Shore durometer, the second ball has a second average Shore durometer, and the difference between the first and second average Shore durometers is more than 10. In certain embodiments, the kit comprises a replaceably detachable first ball having a first diameter, a replaceably detachable second ball having a second diameter, and a replaceably detachable third ball having a third diameter. In certain other embodiments, the kit comprises a conically shaped pressure accessory. In other embodiments, the kit comprises two or more pressure accessories having Shore durometer values that are different, comprise densities that are different from one another, or comprise three-dimensional shapes that are different from one another.
The following examples illustrates methods of administering massage therapy on numerous areas of the body using the massage tool of the present invention. Although the following examples and techniques may be utilized by a practitioner on the patient, they are especially suited and created for self-administered massage therapy. The tools of the present invention allow users to massage their own muscles as deeply as they need. When a practitioner is working on the muscle of a patient, in order to prevent further pain or injury, he typically cannot apply deep pressure and/or apply pressure in the wrong area and not directly on the trigger point. The present invention allows the user to massage the muscle very deeply and in the correct and exact spot desired. Specific exemplary procedures for massage therapy on trigger points in different parts of the body are provided in the following examples. A trigger point release map, shown as a cluster of points on the body, is provided for a myriad of regions of the body in Examples 1-12, infra. These maps provide more than a methodology for releasing a single trigger point. They provide, through textual and visual guidance, a methodology for releasing trigger points in that entire region. Through extensive experimentation, the inventor has developed a trigger point release map shown as a cluster of points, that when the device is applied sequentially, results in therapy of an entire region of the body, which in most instances, contains multiple trigger points. This differential positioning of the device in sequential fashion by adjusting the position of the device through small movements illustrated in the text and figures of the Examples below, was developed through extensive research and experimentation.
Surprisingly, the invention has discovered that when the device is used to treat a known trigger point by the user, the user may become aware of other previously imperceptible or weakly perceptible trigger points that exist adjacent to or in the same anatomical region, e.g., upper back area. By sequentially using the device and methods of the present invention, first on a known trigger point, then other points as shown on the cluster maps provided in the following examples, an user can identify and release trigger points in an entire anatomical region such that long lasting and complete pain relief is realized. While not wishing to be bound by theory, it is believed that it is rare that a user suffering from pain, stiffness, or discomfort, has a trigger point requiring treatment, but that, other sarcomeres and muscular structures in the same region, e.g., shoulder, could benefit from massage therapy even if overt symptoms are not yet perceived by the user. By following the methods and instructions provided below, the inventor has surprisingly discovered that during the course of following the cluster point map, the device helps a user identify additional, previously unknown trigger points (whether they were too small in size or failed to meet an individual user's specific pain threshold) such that an entire anatomical area may be treated and cleared of trigger points.
Without wishing to be bound by theory, it is believed that the mechanisms whereby trigger points form include restricted blood flow, tension, and contractions, which are conductive to the creation of multiple tender, sensitive muscles in the body. Millions of microscopic muscle fibers called sarcomeres must contract within the muscles to create even the smallest movement. A trigger point exists when over-stimulated sarcomeres become unable to release their contracted state. Restricted blood flow results in oxygen starvation and the accumulation of waste products of metabolism, which in turn cause the trigger point to send out pain signals until the brain institutes a policy of rest for the muscle. Limiting the use of the muscle, however, further reduces oxygenation and circulation, which in turn causes muscle fibers to shorten and tighten up, resulting in pain.
A professional body worker can push on the areas of the muscles which need therapy, but a patient can only withstand an amount of pressure which is comfortable. The tools of the present invention allow the user to apply their desired amount of pressure, which may be significantly more than the body worker could comfortably do. This is due to the process where self-administered sensory input causes less distress when compared to the same sensory input by another. A good example is that an individual typically cannot tickle him or herself because that person's actions and nervous system are in sync. Studies at the University College London have shown that the cerebellum predicts the sensation and this prediction is used to cancel the response of other brain areas to the tickle. Similarly, the devices of the presentation invention utilize these sensory principles to allow a person to self-administer therapy more comfortable since the person already knows what to expect in terms of pressure and pain. In contrast, the unpredictability of another person massaging muscles may make the individual more sensitive to touch and feel discomfort more easily, which causes muscle tension.
The general procedure that applies to the specific treatment protocols, below, is as follows: hold on to the handle in one hand and grab on the ball with the other hand, then extend the pole to any length needed. The length of the pole can be adjusted at any time during the procedure. Place the ball under the body on the desired muscle and/or area and allow the body weight to compress the ball onto the muscle. The user can move his/her body and or limbs which makes the ball roll on the muscle and helps the muscle to relax, to release toxins such as lactic acid and relieve tightness.
As illustrated in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
Repeat the steps on all the muscles of your neck. The difference of half an inch in distance of the ball position can make a big difference and finding muscle tension. Also put the ball at the bottom of your skull to get the occipital muscles.
As shown in
As shown in
As shown in
First therapy regimen: as shown in
Second therapy regimen: Sit normally on a chair with no cushion on it. Slightly lift your leg and place the ball under the leg to be worked on. Most likely you will not have to expand the shaft. You can control the amount of pressure on the ball by leaning your body forward and/or straightening that leg. 1. Once the ball is in place straighten your leg and rotate your left and right. You should feel the result of this action on you hamstrings. Lean forward to increase the pressure on the muscles if desired. 2. Bend leg and lean forward to increase the pressure on the ball. Slowly swing the leg left and right like a pendulum. 3. When you are finished, lift your leg, and place the ball in a new location and repeat step 1 and 2. NOTE: Be careful when placing the ball on a nerve. You should only feel pressure not any radiating pain.
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application. All publications, patents, and patent applications, websites, and databases cited herein are hereby incorporated by reference in their entireties for all purposes. Where a conflict exists between the instant application and a reference provided herein, the instant application shall dominate.
Number | Name | Date | Kind |
---|---|---|---|
2582159 | Race | Jan 1952 | A |
4037839 | Nelson | Jul 1977 | A |
4078756 | Cross | Mar 1978 | A |
4210135 | Deuser | Jul 1980 | A |
4421110 | DeLisle | Dec 1983 | A |
4490063 | Aho | Dec 1984 | A |
4846159 | Anzal | Jul 1989 | A |
5016619 | Fitzpatrick | May 1991 | A |
5407197 | Parsons | Apr 1995 | A |
5413551 | Wu | May 1995 | A |
5509653 | Parsons | Apr 1996 | A |
5540017 | Ouellette | Jul 1996 | A |
5566418 | Steffen | Oct 1996 | A |
5637065 | Chang | Jun 1997 | A |
5839967 | Moe | Nov 1998 | A |
5868689 | Faroky | Feb 1999 | A |
6306040 | Chang | Oct 2001 | B1 |
6415470 | Ramrattan | Jul 2002 | B1 |
6830552 | Gonzalez | Dec 2004 | B1 |
6994680 | Aponte | Feb 2006 | B1 |
7004597 | Kukuk | Feb 2006 | B2 |
7169120 | Murdock et al. | Jan 2007 | B2 |
7337933 | Klinberg | Mar 2008 | B1 |
7399285 | Stein | Jul 2008 | B2 |
8092408 | Sloan | Jan 2012 | B2 |
8292915 | Akcasu | Oct 2012 | B2 |
9545357 | Pathrose | Jan 2017 | B2 |
9833049 | Winters | Dec 2017 | B1 |
10322059 | Tucker | Jun 2019 | B2 |
10327981 | Ayotte | Jun 2019 | B1 |
20020072692 | Batula | Jun 2002 | A1 |
20020163799 | Kukuk | Nov 2002 | A1 |
20050015032 | Stein | Jan 2005 | A1 |
20070203437 | Squillace | Aug 2007 | A1 |
20080200851 | Faussett | Aug 2008 | A1 |
20090093743 | Corzine | Apr 2009 | A1 |
20100094333 | Akcasu | Apr 2010 | A1 |
20110224588 | Grippo | Sep 2011 | A1 |
20120323151 | Faussett | Dec 2012 | A1 |
20130012851 | Fahmie | Jan 2013 | A1 |
20140027596 | Chang | Jan 2014 | A1 |
20140243116 | Durham | Aug 2014 | A1 |
20150202117 | Ishibashi | Jul 2015 | A1 |
20160136032 | Dakides | May 2016 | A1 |
20160262972 | Phillips | Sep 2016 | A1 |
20180161234 | Dominee | Jun 2018 | A1 |
20190151189 | Morris | May 2019 | A1 |
Number | Date | Country |
---|---|---|
102015108058 | Nov 2016 | DE |
Number | Date | Country | |
---|---|---|---|
20210369549 A1 | Dec 2021 | US |