The invention relates to roof attachment systems and methods of using the same during the installation, maintenance, or repair of a roof on a commercial or residential building structure. The roof attachment system and method includes an adjustable and modular support bracket assembly that provides a secure anchor point that a person, such as an installer, can couple a safety harness to during the installation, maintenance, or repair of the roof.
Conventional roofs for commercial buildings and residential structures (e.g., single-family homes and multi-family units like condominiums and townhomes) vary in design and composition. Nonetheless, conventional roofs suffer from a number of shortcomings. For example, conventional roofs can be difficult and in some circumstances, dangerous to install, maintain, or repair, especially in inclement weather conditions (e.g., rain, snow, cold, hail, high humidity, high winds or combinations thereof) because of their very nature, roofs are elevated a significant distance above the ground. Thus, conventional roofs can be dangerous to install, maintain, or repair because they present appreciable fall and injury risks to installers and maintenance personnel. Because the fall and injury risks are appreciable, local, state and federal regulatory bodies have enacted stringent codes and regulations to address and minimize these risks. Compliance with these codes and regulations by architects, developers, builders and the installation crew requires careful consideration starting at the planning and design stages of the building structure. Furthermore, compliance with the codes and regulations, including in the field during the construction process, requires of expensive design and installation resources, which are necessary to avoid detrimental actions from the regulatory bodies. Accordingly, there is an unmet need for a roof attachment system that an installer or maintenance worker may use to aid in the installation and/or maintenance of the roof.
The present disclosure provides a roof attachment system and methods of using the same during both the installation of a roof on a commercial or residential building. The systems and methods can also be used during maintenance and repair of the roof and/or building over its lifetime. The roof attachment system and the related methods of using and implementing the system include an adjustable and modular support bracket assembly or anchor. The roof attachment system enables the installer to utilize the support bracket during the process of installing the roof and after the roof has been installed.
The attachment system includes a support bracket that is configured to be permanently attached to an extent of the roof of the building structure. In the illustrated embodiment, the support bracket includes an anchor element and a pair of truss attachment assemblies, where the anchor element includes first and second coupling members on opposed ends. Each truss attachment assembly includes a first truss attachment segment and a second truss attachment segment. The support bracket is configured to be coupled to a frame member of the roof, wherein a ridge cap can be installed over a substantial portion of the support bracket(s) and coupling members of the support bracket extend outward of the ridge cap and are thereby exposed.
In various embodiments, the anchor element has a connecting member that extends between first and second coupling members. The connecting member has a midpoint apex and two arms that extend symmetrically from the apex. Each arm has an anchor slot configured to couple with a first truss attachment segment. Each of the first and second coupling members having an opening formed there through, wherein said opening is configured to provide a first anchor point that an installer can couple a safety line to during the installation, maintenance, or repair. The anchor element configured to be manually adjusted or bent at the apex to match the roof pitch.
The first truss attachment segment has a base and a support member extending in a substantially perpendicular direction from one end of the base. The base having a plurality of securement openings and at least one attachment slot formed there through, wherein each of said openings are configured to receive an elongated fastener to secure said first truss attachment segment to a first surface of a first frame member of the roof. The support member has an anchor protrusion at a distal end of the support member configured to be received into an anchor slot of the anchor element. Together, the anchor element and a pair of first truss attachment segments form at least a portion of the support bracket. The base and support member of each first truss attachment segment and extents of the anchor element on each side form channels to receive an extent of the adjacent shingles or panels and an extent of (i) an adjacent purlin, or (ii) roof sheathing, depending upon the roof configuration. In some embodiments, the first truss attachment segment includes an offset.
In some embodiments, the second truss attachment segment has at least one attachment protrusion and a plurality of securement openings formed there through, wherein the at least one attachment protrusion configured to couple with the at least one attachment slot of the first truss attachment segment, and each of said openings are configured to receive an elongated fastener to secure the second truss attachment segment to a second surface of a first frame member of the roof. In some embodiments, the first and second truss attachment segments are integrally formed.
In this manner, the roof attachment system facilitates the installation, maintenance or repair by an installer or technician while also helping to reduce the chances that the installer or technician experiences a fall from the roof. Other features and advantages of the roof attachment system and methods of using same will be apparent from the following disclosure taken in conjunction with the following figures.
The drawing figures depict one or more implementations in accordance with the present teachings, by way of example only, not by way of limitation. In the figures, like reference numerals refer to the same or similar elements.
In the following detailed description, numerous specific details are set forth by way of examples in order to provide a thorough understanding of the relevant teachings. However, it should be apparent to those skilled in the art that the present teachings may be practiced without such details. In other instances, well-known methods, procedures, components, and/or circuitry have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present disclosure.
While this disclosure includes a number of embodiments in many different forms, particular embodiments will be described in greater detail with the understanding that the present disclosure is to be considered as an exemplification of the principles of the disclosed methods and systems, and is not intended to limit the broad aspects of the disclosed concepts to the embodiments illustrated. As will be realized, the subject technology is capable of other and different configurations, several details are capable of modification in various respects, embodiments may be combine, steps for installation may be omitted or performed in a different order, all without departing from the scope of the subject technology. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.
The roof attachment system 100, as illustrated in
The Figures disclose eight different embodiments of the support bracket assembly 200. The support bracket assembly 200 can be provided as a modular assembly where a universal anchor element 500 can be coupled to truss attachment assemblies 220 selected for the specified type of roof installation. These and other components of the system 100 function together to provide an anchor point that an installer or a technician can couple his/her safety line 950 to during the installation, maintenance, or repair of the roof 12 and/or the structure 10. This is beneficial for at least the following reasons. First, the support bracket assembly 200 is permanently attached to an extent of the building structure 10, namely the roof 12, which enables the installer or service technician to removably couple a safety line 950 to the support bracket 200 throughout the life of the structure 10. Second, a majority of the support bracket assembly 200 is concealed underneath an extent of the roof 12, which provides a number of benefits to the roof system 100.
Third, the support bracket assembly 200 can be coupled to an extent of the roof 12 (e.g., an extent of a truss 20) prior to when that extent of the roof 12 is elevated above the ground and attached to the support frame, such as walls 14, of the structure 10, which: (i) eliminates the need to attach the support bracket assembly 200 at a later time and (ii) minimizes the risks that the first person up on the roof 12 is exposed to when installing, maintaining, or working on the roof 12. Fourth, the support bracket assembly 200 provides an elevated anchor point for the roof attachment system 100, which: (i) helps ensure that the installer or technician will not make contact with the ground during a fall and (ii) allows the installer or technician to utilize a sufficiently long safety line 950, which reduces the number of times the installer or technician must detach and attach their safety line 950 while on the roof 12, which reduces down-time and increases the working efficiency of the installer/technician.
Fifth, the roof attachment system 100 includes a dual truss attachment configuration that secures the support bracket to both the top and sides of the truss, preventing twisting or shifting under load. This stability helps couple the support bracket to the truss and helps prevent the anchor element from disengaging from the truss when subjected to dynamic forces, such as those experienced during a fall. The robust coupling between the roof and said root attachment system 100 meets regulation, requirements, or guidelines set forth by governing or regulating body. For example, the roof attachment system 100 meets Occupational Safety and Health Administration's (“OSHA”) requirements identified below and incorporated herein by reference.
Sixth, the disclosed support bracket assembly 200-7200 feature a modular design consisting of a universal anchor element 500 and interchangeable truss attachment assemblies 220, 1220, 2220, 3220 that can be selected based on specific roof installation requirements such as pitch, purlin type, or retrofit needs. The anchor element is compatible with multiple truss attachment assemblies and can be manually adjusted or bent to match the roof pitch 12, providing additional adaptability during installation. This modularity extends to the truss attachment portions themselves; the first and second truss attachment portions can be configured differently based on the truss design, with purlin support structures within the first truss attachment portion varying in height to accommodate different purlin sizes. This flexibility allows installers to mix and match components to meet specific building needs without altering the core anchor element, ensuring compatibility across diverse roof designs while reducing waste and improving overall installation efficiency. By significantly reducing the number of distinct parts that need to be manufactured and stocked—potentially lowering manufacturing and inventory costs by ninefold or more—the modular approach offers substantial resource-related and cost benefits recognized by those skilled in the art. Manufacturers are not required to fabricate numerous specific internal support brackets for each roof pitch, and installers do not need to stock a wide variety of parts, thereby minimizing costs and logistical complexity. While utilizing non-adjustable support brackets is feasible, it necessitates the fabrication and stocking of many specific parts for each roof pitch, increasing material, manufacturing, and inventory costs; therefore, the modular and adjustable features of the disclosed support bracket assembly provide significant advantages over non-adjustable counterparts.
In general terms, the support bracket 200 creates an elevated attachment point 110 that an installer or repair technician can removably couple his/her safety line 950 to during the installation, maintenance, or repair of the roof 12 and/or the structure 10. The elevated attachment point 110 provides two anchor points 112, 114, each of which may be available during the first portion or stage of the roof 12 installation by the support bracket assembly or support bracket 200. In particular, the first and second anchor points 112, 114, of the support bracket 200 are spaced apart and positioned on either side of the ridgeline, R of the roof 12. Additionally, in most scenarios, multiple support brackets 200 are installed within the structure 10, which provide multiple elevated attachment points 110 that are spaced longitudinally apart (e.g., typically at least 8 feet and more typically about 16 feet) along the ridgeline, R or length of the roof 12. This configuration of multiple attachment points 110 along the roof 12 helps ensure that the installer or repair technician can removably couple his/her safety line 950 for full working coverage of the area of the roof 12 during the installation, maintenance, or repair of the roof 12 and/or the structure 10. In summary, if the structure 10 includes multiple internal support brackets 200, then the structure 10 will include multiple elevated attachment points 110 that are positioned: (i) on either side of the ridgeline (e.g., first and second anchor points 112, 114 are on opposite sides of the ridgeline and (ii) along the length of the building 10.
All of the disclosed versions of the support bracket 200-7200 are designed to be used in a similar manner and as such, they have many overlapping components and functional aspects. Accordingly, the following description primarily focuses on the first embodiment of the support bracket 200 with the understanding that this disclosure will apply to the other embodiments of the internal support brackets 1200-7200. As such, similar structures and components amongst these embodiments are identified by similar numbers that are separated by 1000s. For example, the disclosure in connection with the first purlin support structure 274a of the support bracket 200 applies to the first purlin support structure 1274a of the support bracket 1200. Thus, multiple reference numbers for the second through the eighth internal support brackets 1200-7200 are not included within this specification and instead, one shall refer to the disclosure of similar structures for the first embodiment of the support bracket 200. This format of the disclosure is done for efficiency and should not be construed to limit the disclosure in any manner. In fact, it should be understood that any structure or feature that is shown within or pertaining to anyone of the disclosed embodiments can be added to, used in connection with, or used instead of a structure or feature of another one of the disclosed embodiments.
As shown in
The support bracket 200 can be provided as a kit including an anchor element 500, first truss attachment portion 270, and a second truss attachment portion 230 can be selected based on the size and configuration required for the installation. Various embodiments of the truss attachment assembly 220, 1220, 2220, 3220 are disclosed herein and can be selected for use with various embodiments of anchor element 500, 1500, 2500, 3500 to the extent applicable and based on the installation and roof design. The various options for truss attachment assembly 220 including a first truss attachment portion 270 and/or a second truss attachment portion 230 are discussed herein. For example, as shown in the
As shown in Figures, the support bracket assembly 200 is adapted, designed, and configured to be used in connection with a post-frame building. The support bracket 200 includes: (i) a first extent of the support structure 202a and (ii) a second extent of the support structure 202b. The first and second extent of the support structures 202a, 202b are mirror images of one another and extend from the apex 505 of the anchor element 500. The anchor element 500 is configured to be bent at the connecting member 510 to match the pitch of the roof, which provides the adjustability aspect of this first embodiment of the support bracket 200, which will be discussed in greater detail below.
a. Anchor Element
The anchor element 500 is coupled to each purlin support structure 274a, 274b, of the truss attachment assembly 220 and includes: (i) the coupling assembly 370 and openings formed there through to allow for securement of the truss attachment assembly 220 to the truss 20, and (ii) connecting member 510.
i. First and Second Coupling Members
The coupling assembly 370 includes: (i) a first coupler or coupling member 374a that forms part of the first extent of the support structure 202a and (ii) a second coupler or coupling member 374b that forms part of the second extent of the support structure 202b. The first and second coupling members 374a, 374b of the coupling assembly 370 are in an opposed positional relationship to one another about the support bracket center line, IC. The first and second coupling members 374a, 374b are configured to enable an installer to connect their safety line 950 to the support bracket 200 without the use of a separate securement assembly. As such, the first and second coupling members 374a, 374b create the first and second anchor points 112, 114, when the support bracket 200 is coupled to an installed truss 20. Optionally, the anchor element 500 can also include end plates 375a, 375b configured to substantially match and reinforce the first and second coupling members 374a, 374b. In other embodiments, the end plates 375a, 375b may be omitted and the first and second couplers or coupling members 374a, 374b may be strengthened using any one or any combination of the following methods welding, preheating, post-heating, post-weld heat treatment (PWHT), quenching and tempering, thermomechanical processing, hardfacing, work hardening (cold working), solid solution strengthening, precipitation hardening, surface hardening techniques (carburizing, nitriding), shot peening, laser hardening, cryogenic treatment, strain hardening, laminating or cladding, ultrasonic impact treatment, electron beam hardening, surface coatings (PVD, CVD), and/or any other known methods.
To create the first and second anchor points 112, 114, the first coupling member 374a includes a first opening 378a and the second coupling member 374b includes a second opening 378b. These openings 378a, 378b are designed to receive an extent of the safety line 950; specifically, an extent of the carabiner 952 that is coupled to the safety line 950, as shown in
ii. Connecting Member
The connecting member 510 extends between the first and second coupling members 374a, 374b and forms the apex 505 of the support bracket assembly 200. As shown in
The bottom surface of the first and second coupling members 374a, 374b are angled relative to the bottom surface of the connecting member 510. The angle alpha-2 (α2) formed between the bottom surface of the first and second coupling members 374a, 374b and the bottom surface of the connecting member 510 is between 1 degree and 60 degrees, and preferably between 10 degrees and 40 degrees. Said angle alpha-2 (α2) helps ensure that the installer can clip their carabiner 952 to the anchor points 112, 114. Without said angle alpha-2 (@2), the first and second coupling members 374a, 374b would be positioned at the same angle as the roof and the space provided between the first and second coupling members 374a, 374b and the roof would hamper the usability of connecting and disconnecting from the support bracket 200. Also, connecting member 510 is designed such that the first and second coupling members 374a, 374b are designed to be positioned outside or beyond the ridge cap 60 to ensure that the installer can clip their carabiner 952 to the anchor points 112, 114. In contrast, if the first and second coupling members 374a, 374b were not positioned outside or beyond the ridge cap 60, the system 100 would not work because the installer could not be able to clip their carabiner 952 to the anchor points 112, 114. In other words, the support bracket 200 could not function if it was hidden, internal to, or concealed within the ridge cap 60.
b. Truss Attachment Assembly
The truss attachment assembly 220 is configured to attach to an extent of a truss 20 and can be coupled to the truss 20: (i) prior to the installation of the truss 20 on the walls 14 of the structure 10 or (ii) after installation of the truss 20 on the walls 14 of the structure 10. Coupling the support bracket 200 to truss 20 prior to the installation of the truss 20, allows for the installer or builder to couple a safety line 950 to the highest point of the truss 20 before the truss 20 is installed on the structure 10. Once the truss 20 has been properly secured to the walls 14 of the structure 10 and the safety line 950 is coupled to the support bracket 200, an elevated attachment point 110 has been created that specifically includes two individual anchor points 112, 114. In particular, this elevated attachment point 110, including the two anchor points 112, 114, is in a raised vertical position relative to: (i) the ground, (ii) foundation of the structure 10, (iii) the upper extent of the walls 14, (iv) the apex 20a of the truss 20 and (v) typically a majority of the roof 12. The combination of the safety line 950 and this elevated attachment point 110 helps reduce the risks that are experienced by the first person up on the roof 12, which includes the risk of falling off the roof 12 and hitting the ground. Additionally, this elevated attachment point 110 is beneficial over an anchor point that is at the height of the upper extent of the wall 14 because this allows the installer to properly use a longer safety line 950. This longer safety line 950: (i) permits the installer to have a wider range of movement to continue installing, repairing, or maintaining the roof 12 and (ii) reduces the number of time the installer must disconnect and reconnect his safety line 950 to new anchor points. Although coupling the support bracket 200 to the truss 20 prior to its installation is not required for the use of the support bracket 200, there are significant advantages (e.g., as discussed above) of coupling the support bracket 200 prior to the installation of the truss 20.
The truss attachment assembly 220 includes: (i) a first truss attachment segment 224a that forms part of the first extent of the support structure 202a and (ii) a second truss attachment segment 224b that forms part of the second extent of the support structure 202b. As such, the first and second truss attachment segments 224a, 224b are in an opposed relationship to one another about a support bracket center line, IC. Each truss attachment segment 224a, 224b is comprised of an arrangement of a first or upper portion 228a, 228b, and a second, lower, or vertical portion 230a, 230b coupled thereto. As shown in
Each portion 228a, 228b, 230a, 230b has a plate like configuration and at least one aperture 234 formed through said portions 228a, 228b, 230a, 230b, wherein each aperture 234 is designed to receive an extent of an elongated coupler 236 to aid in the coupling of the support bracket 200 to the truss 20. The number of apertures 234 that are formed within each of the portions 228a, 228b may be between 0 and 42, preferably between 3 and 30, more preferably between 9 and 21, and most preferably between 15 and 18. The number of apertures 234 that are formed within each of the portions 230a, 230b may be between 0 and 30, preferably between 0 and 10, more preferably between 1-5, and most preferably 4. There are multiple configurations for the location of these apertures 234, some non-limiting examples are disclosed below. As shown in
While the above describes a first possible location of the apertures 234 within the portions 228a, 228b, 230a, 230b, it should be understood that other possible locations for these apertures 234 are possible. In a first embodiment, the apertures 234 that are formed within the first and third segments: (i) could be moved to the center or closer to the second linear portion 230a, 230b or (ii) staggered from one another (e.g., not aligned). In a second embodiment, the apertures 234 formed in the second portion 230a, 230b may be aligned with one another (e.g., not staggered) or may be placed outside of the center of the width of the second portion 230a, 230b. In a third embodiment, none of the apertures 234 contained within the truss attachment assembly 220 may be aligned with one another. Finally, in a fourth embodiment, all of the apertures 234 contained within the truss attachment assembly 220 may be aligned with one another. In alternative embodiments, the combination of the aperture(s) 234 and elongated coupler(s) 236 may be replaced by any type of truss coupling means, which includes welding (e.g., spot or butt welds), projections that extend from the inner surfaces of the portions 228a, 228b, 230a, 230b and are received by the truss 20, ball-detent, rivets, or other mechanical or chemical couplers.
Further, as shown in
i. First Truss Attachment Portion
The first truss attachment portion 270 includes: (i) a first purlin support structure 274a that forms part of the first extent of the support structure 202a and (ii) a second purlin support structure 274b that forms part of the second extent of the support structure 202b. As such, the first and second purlin support structures 274a, 274b are in an opposed relationship to one another about the support bracket center line, IC. In particular, the purlin 22 runs across an extent of the length of the building and links the trusses to one another. As best shown in
The first truss attachment portion 270 coupled to first and second arms 512a, 512b of the anchor element 500 form channels 326a, 326b on opposing sides. For example, the securement channel 326a defined by an extent of arm 512a, purlin support structure 274a, and first or upper portion 228a of truss attachment segment 224a. The channels 326a, 326b are configured to receive an extent of the roof panel 24. For example, the securement channel receives an extent of the adjacent shingle(s)/panel(s) and an extent of (i) an adjacent purlin, or (ii) roof sheathing, depending upon the roof configuration.
The purlin support structures 274a, 274b are integrally formed with the first or upper portions 228a, 228b of the truss attachment segments 224a, 224b and is interchangeably connected to the anchor element 500, which permits the manufacturer to reduce the number of parts for manufacture of the support bracket assembly 200. For example,
ii. Second Truss Attachment Portion
The second or vertical portions 230a, 230b of the truss attachment segments 224a, 224b are interchangeably connected to the first or upper portions 228a, 228b. This interchangeability allows for the reduction of parts and provides the support bracket 200 with modularity that can be utilized in the field to account for trusses have different sizes, mating regions and/or configurations during the installation of the roof on the building. For example,
The first step in installing the support bracket 200 requires the installer to position an extent of the truss 20 adjacent to first or upper portion 228a and second or vertical portion 230a of the first truss attachment segment 224a. The installer can secure the first truss attachment segment 224a to an extent of the truss 20 using the apertures 234 and elongated couplers 236. Once all, or at least some, of the apertures 234 have received elongated couplers 235, the installer rotates or pivots the second truss attachment segment 224b such that the first or upper portion 228b and second or vertical portion 230b of the second truss attachment segment 224b is positioned adjacent to an extent of the truss 20. The installer then secures the second truss attachment segment 224b to the truss 20 using the apertures 234 and elongated couplers 236. Once the support bracket 200 is coupled to the truss 20, the truss can be installed on the walls 14 of the structure 10. During this installation process, the installer can secure himself to the support bracket 200 prior to when the truss 20 is installed on the structure 10. This configuration helps minimize the risk that is experienced by the installer who is first up on the roof/walls of the structure 10, as shown in
It should be understood that the use of the disclosed roof attachment system 100 meets the requirements set forth in: (i) Appendix C of Part 1926 of Chapter XVII of Title 29 of the Code of Federal Regulations and (ii) Section 2 of Part II Chapter 4 of Section V of OSHA Technical Manual, both of which are fully incorporated herein by reference. In other words, the disclosed roof attachment system 100 can support at least 5000 pounds without failing. In addition to the above references that are incorporated herein by references, it should be understood that the following documents or papers are also incorporated herein by reference: (i) Title 29 of the Code of Federal Regulations, (ii) OSHA Technical Manual, (iii) OSHA part number 1926, and (iv) fall protection regulations or standards issued by OSHA, governmental bodies, or other agencies.
As shown in
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Shown in
Some of the disclosed versions of the support bracket 200-7200 are designed to be used with the trim system that is described within U.S. Provisional Patent Application Nos. 62/890,005 and 62/916,196, both of which are fully incorporated herein by reference. In particular and as described in greater detail below, the installation order starts with: (i) coupling the support bracket 200 to an extent of the structure 10, namely a portion the roof 12, such as an extent of a truss 20 (ii) coupling the installer's safety line 950 to the support bracket 200, (iii) installing portions of the roof 12 on the support walls 14, (iv) installing the trim 18 of the roof 12, which includes installing the ridge cap 60 over a majority of the support bracket 200, (v) installing the roofing panels 24 within or over the trim 18, while securing the installer's safety line 950 is connected to the support bracket 200. This installation order helps ensure that: (i) a majority of the support bracket 200 remains hidden from exterior view, when the roof 12 is installed, and (ii) the support bracket 200 is directly coupled to an extent of the structure 10 which increases the structural rigidity and durability of the system 100. It should be understood that this installation order is non-limiting and alternative installation orders and configurations (e.g., as described below) are contemplated by this disclosure.
While Figures disclose eight different embodiments of the support bracket 200-7200, it should be understood that there are other embodiments of the support bracket 200-7200 that are contemplated by this disclosure. In an alternative embodiment, the truss coupling means is a resalable coupling means such that the support bracket 200-7200 may be temporarily coupled to the truss 20 and then removed prior to the installation of the roof 12. It is to be understood that the invention is not limited to the exact details of construction, operation, exact materials or embodiments shown and described, as obvious modifications and equivalents will be apparent to one skilled in the art. While the specific embodiments have been illustrated and described, numerous modifications come to mind without significantly departing from the spirit of the invention, and the scope of protection is only limited by the scope of the accompanying Claims. For example, the roof attachment system 100 may be used in connection with other parts of the roof 10 other than the ridge. It should be understood that other modifications of side system 100 based on U.S. Pat. No. 11,203,881, which is incorporated herein by reference for all purposes, are also contemplated by this disclosure.
The description provided in the background or other sections here should not be assumed to be prior art merely because it is mentioned in or associated with the background section or described as conventional. The background section may include information that describes one or more aspects of the subject of the technology, and components that are described as conventional may be contemporaneous or other versions of the disclosed technology.
This application: (i) is a continuation-in-part of U.S. Design patent application Ser. No. 29/836,932, filed Apr. 29, 2022, and (ii) claims the benefit of and priority to U.S. Provisional Patent Application No. 63/545,690, filed Oct. 25, 2023, both of which are incorporated by reference herein in their entirety for all purposes. Additionally, U.S. patent application Ser. Nos. 11/203,881 and 17/555,622 and U.S. Provisional Patent Applications Nos. 62/890,005 and 62/916,196 are hereby incorporated by reference in its entirety for all purposes.
Number | Date | Country | |
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63545690 | Oct 2023 | US |
Number | Date | Country | |
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Parent | 29836932 | Apr 2022 | US |
Child | 18927000 | US |