Patents in suit

US 12,036,336 Firearm trigger mechanism

26 defendants · 33 suits · updated October 6, 2026

Also cited as U.S. Patent No. 12,036,336 · US12036336B2 · US 12,036,336 B2 · 12036336 · the '336 patent

ABC IP, LLC has filed 33 patent-infringement suits on US 12,036,336, "Firearm trigger mechanism" since May 28, 2026, 12 of them in the E.D. Tex., against 26 distinct defendants including Vance Outdoors, Inc., 2A Ninja LLC and Quick Response Firearms, LLC. The patent was granted July 16, 2024 on a priority date of January 10, 2022. Its abstract opens: "A trigger mechanism that can be used in AR-pattern firearms has a hammer, a trigger member, a disconnector, a locking member, and a “three position” safety selector having safe, standard semi-automatic, and forced reset semi-automatic positions." The examiner cited 1 reference during prosecution.

Assignee
ABC IP LLC
Priority date
January 10, 2022
Granted
July 16, 2024
Expires
January 10, 2042
Status
Active
Claims
12 (4 independent)
Inventors
Mladen Thomas Strbac
Full text
Google Patents

The suits

33 cases · E.D. Tex. (12) · E.D. Va. (3) · S.D. Ohio (1) · E.D. Mo. (1) · D. Idaho (1) · D.S.C. (1) · M.D.N.C. (1) · E.D. Cal. (1) · D. Md. (1) · N.D. Tex. (1) · S.D. Miss. (1) · D. Ariz. (1) · N.D. Fla. (1) · W.D. Tex. (1) · W.D.N.C. (1) · E.D. Ky. (1) · N.D. Miss. (1) · W.D. La. (1) · W.D. Mo. (1) · W.D. Wash. (1)

Filed Defendant Plaintiff Court Docket
2026-05-28 Vance Outdoors, Inc. ABC IP, LLC S.D. Ohio 2:26-cv-00645
2026-05-29 2A Ninja LLC ABC IP, LLC E.D. Mo. 4:26-cv-00854
2026-06-01 Quick Response Firearms, LLC ABC IP, LLC D. Idaho 4:26-cv-00343
2026-06-04 East Coast Cerakote LLC ABC IP, LLC D.S.C. 3:26-cv-02196
2026-06-05 SHOOTING TARGETS USA, LLC ABC IP, LLC M.D.N.C. 1:26-cv-00527
2026-06-08 Dirty Bird Industries, LLC ABC IP, LLC E.D. Cal. 1:26-cv-04425
2026-06-09 Atlantic Firearms LLC ABC IP, LLC D. Md. 1:26-cv-02317
2026-06-09 GrabAGun LLC ABC IP LLC N.D. Tex. 3:26-cv-01903
2026-06-09 Velocity Ammunition Sales, LLC ABC IP, LLC E.D. Va. 3:26-cv-00533
2026-06-15 2A Optics LLC ABC IP, LLC S.D. Miss. 5:26-cv-00539
2026-06-18 TGR Services, LLC, d/b/a Mission Ridge LLC & Mission Ridge Range & Academy LLC, f/k/a Texas Gun Range Operators LLC ABC IP, LLC E.D. Tex. 4:26-cv-00680
2026-07-07 ADVANCED THREAT ASSESSMENT AND TRAINING INC. Rare Breed Triggers, Inc. E.D. Tex. 4:26-cv-00801
2026-07-14 Star Development LLC ABC IP LLC D. Ariz. 2:26-cv-04939
2026-07-21 Firearms Direct Club LLC ABC IP LLC N.D. Fla. 3:26-cv-04717
2026-07-21 Muffintop Tactical, LLC ABC IP, LLC W.D. Tex. 1:26-cv-02010
2026-07-22 MAS Defense LLC ABC IP, LLC W.D.N.C. 3:26-cv-00592
2026-07-22 MGCC Enterprises LLC ABC IP, LLC E.D. Va. 1:26-cv-02210
2026-07-22 MGCC Enterprises LLC ABC IP, LLC E.D. Va. 2:26-cv-00776
2026-07-23 Clifford Farrington ABC IP, LLC E.D. Ky. 5:26-cv-00279
2026-07-27 Atlantic Firearms LLC ABC IP, LLC E.D. Tex. 4:26-cv-00926
2026-07-28 DMR Reset Systems Limited Liability Company ABC IP, LLC N.D. Miss. 1:26-cv-00139
2026-07-28 Inoculum-Group LLC ABC IP, LLC E.D. Tex. 4:26-cv-00945
2026-07-28 Quick Response Firearms, LLC ABC IP LLC E.D. Tex. 4:26-cv-00944
2026-07-29 Bilson Arms L L C A B C I P L L C W.D. La. 6:26-cv-02780
2026-08-04 East Valley Tactical LLC ABC IP LLC E.D. Tex. 4:26-cv-00996
2026-08-05 Dirty Bird Industries, LLC ABC IP, LLC E.D. Tex. 4:26-cv-01013
2026-08-05 Gross ABC IP, LLC W.D. Mo. 3:26-cv-05070
2026-08-19 Odin Works, Inc. ABC IP, LLC E.D. Tex. 4:26-cv-01091
2026-08-20 2A Ninja LLC ABC IP, LLC E.D. Tex. 4:26-cv-01106
2026-08-25 Combat Armory LLC ABC IP, LLC E.D. Tex. 4:26-cv-01129
2026-08-26 Bilson Arms, LLC ABC IP, LLC E.D. Tex. 4:26-cv-01134
2026-08-26 Star Development, LLC ABC IP, LLC E.D. Tex. 4:26-cv-01136
2026-09-14 GSG Mfg LLC ABC IP LLC W.D. Wash. 2:26-cv-03290

Docket links open the public record on CourtListener. Filing dates are the complaint's.

Independent claims

What is actually asserted, verbatim.

Claim 1

1. A firearm trigger mechanism comprising: a hammer having a sear catch and a hook for engaging a disconnector and adapted to be mounted in a fire control mechanism pocket of a receiver to pivot on a transverse hammer pivot axis between set and released positions, said hammer adapted to be pivoted rearward by rearward movement of a bolt carrier, a trigger member having a sear and adapted to be mounted in the fire control mechanism pocket to pivot on a transverse trigger member pivot axis between set and released positions, said trigger member having a surface positioned to be contacted by a surface of said hammer during rearward pivoting of said hammer to cause said trigger member to be forced to said set position, wherein said sear and sear catch are in engagement in said set positions of said hammer and trigger member and are out of engagement in said released positions of said hammer and trigger member, a disconnector having a hook for engaging said hammer and adapted to be mounted in the fire control mechanism pocket to pivot on said transverse trigger member pivot axis, a locking member adapted to be mounted in the fire control mechanism pocket to pivot on a transverse locking member pivot axis, said locking member being pivotable between a first position at which said locking member mechanically blocks said trigger member from moving to said released position and a second position at which said locking member does not mechanically block said trigger member allowing said trigger member to be moved to said released position, said locking member spring biased toward said first position and adapted to be moved against said spring bias to said second position by contact from the bolt carrier during forward movement of the bolt carrier as the bolt carrier reaches a substantially in-battery position, and a safety selector adapted to be mounted in the fire control mechanism pocket to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions, said safety selector configured such that, when said safety selector is in said forced reset semi-automatic position, said safety selector causes said disconnector to be repositioned and in doing so prevents said disconnector hook from catching said hammer hook, whereupon in said standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer such that said disconnector hook catches said hammer hook, at which time a user must manually release said trigger member to free said hammer from said disconnector to permit said hammer and trigger member to pivot to said set positions so that the user can pull said trigger member to fire the firearm, and whereupon in said forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer causing said trigger member to be forced to said set position, said safety selector preventing said disconnector hook from catching said hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull said trigger member to fire the firearm without manually releasing said trigger member.

Claim 3

3. A firearm trigger mechanism comprising: a housing having a first pair of transversely aligned openings for receiving a hammer pin and a second pair of transversely aligned openings for receiving a trigger member pin, a hammer having a sear catch and a hook for engaging a disconnector and mounted in said housing to pivot on said hammer pin between set and released positions, said hammer adapted to be pivoted rearward by rearward movement of a bolt carrier, a trigger member having a sear and mounted in said housing to pivot on said trigger member pin between set and released positions, said trigger member having a surface positioned to be contacted by a surface of said hammer during rearward pivoting of said hammer to cause said trigger member to be forced to said set position, wherein said sear and sear catch are in engagement in said set positions of said hammer and trigger member and are out of engagement in said released positions of said hammer and trigger member, a disconnector having a hook for engaging said hammer and mounted in said housing to pivot on said trigger member pin, a locking member mounted in said housing to pivot on a transverse locking member pin, said locking member being pivotable between a first position at which said locking member mechanically blocks said trigger member from moving to said released position and a second position at which said locking member does not mechanically block said trigger member allowing said trigger member to be moved to said released position, said locking member spring biased toward said first position and adapted to be moved against said spring bias to said second position by contact from the bolt carrier during forward movement of the bolt carrier as the bolt carrier reaches a substantially in-battery position, and a safety selector adapted to be mounted in a fire control mechanism pocket of a receiver to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions, said safety selector configured such that, when said safety selector is in said forced reset semi-automatic position, said safety selector causes said disconnector to be repositioned and in doing so prevents said disconnector hook from catching said hammer hook, whereupon in said standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer such that said disconnector hook catches said hammer hook, at which time a user must manually release said trigger member to free said hammer from said disconnector to permit said hammer and trigger member to pivot to said set positions so that the user can pull said trigger member to fire the firearm, and whereupon in said forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer causing said trigger member to be forced to said set position, said safety selector preventing said disconnector hook from catching said hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull said trigger member to fire the firearm without manually releasing said trigger member.

Claim 7

7. A firearm comprising: a receiver having a fire control mechanism pocket therein, a reciprocating bolt carrier, a hammer having a sear catch and a hook for engaging a disconnector and mounted in said fire control mechanism pocket to pivot on a transverse hammer pivot axis between set and released positions, said hammer pivoted rearward by rearward movement of said bolt carrier, a trigger member having a sear and mounted in said fire control mechanism pocket to pivot on a transverse trigger member pivot axis between set and released positions, said trigger member having a surface positioned to be contacted by a surface of said hammer during rearward pivoting of said hammer to cause said trigger member to be forced to said set position, wherein said sear and sear catch are in engagement in said set positions of said hammer and trigger member and are out of engagement in said released positions of said hammer and trigger member, a disconnector having a hook for engaging said hammer and mounted in said fire control mechanism pocket to pivot on said transverse trigger member pivot axis, a locking member mounted in said fire control mechanism pocket to pivot on a transverse locking member pivot axis, said locking member being pivotable between a first position at which said locking member mechanically blocks said trigger member from moving to said released position and a second position at which said locking member does not mechanically block said trigger member allowing said trigger member to be moved to said released position, said locking member spring biased toward said first position and moved against said spring bias to said second position by contact from said bolt carrier during forward movement of said bolt carrier as said bolt carrier reaches a substantially in-battery position, and a safety selector adapted mounted in said fire control mechanism pocket to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions, said safety selector configured such that, when said safety selector is in said forced reset semi-automatic position, said safety selector causes said disconnector to be repositioned and in doing so prevents said disconnector hook from catching said hammer hook, whereupon in said standard semi-automatic position, rearward movement of said bolt carrier causes rearward pivoting of said hammer such that said disconnector hook catches said hammer hook, at which time a user must manually release said trigger member to free said hammer from said disconnector to permit said hammer and trigger member to pivot to said set positions so that the user can pull said trigger member to fire the firearm, and whereupon in said forced reset semi-automatic position, rearward movement of said bolt carrier causes rearward pivoting of said hammer causing said trigger member to be forced to said set position, said safety selector preventing said disconnector hook from catching said hammer hook, and thereafter when said bolt carrier reaches the substantially in-battery position the user can pull said trigger member to fire the firearm without manually releasing said trigger member.

Claim 12

12. A firearm trigger mechanism comprising: a hammer having a sear catch and a hook for engaging a disconnector and adapted to be mounted in a fire control mechanism pocket of a receiver to pivot on a transverse hammer pivot axis between set and released positions, said hammer adapted to be pivoted rearward by rearward movement of a bolt carrier, a trigger member having a sear and adapted to be mounted in the fire control mechanism pocket to pivot on a transverse trigger member pivot axis between set and released positions, said trigger member having a surface positioned to be contacted by a surface of said hammer during rearward pivoting of said hammer to cause said trigger member to be forced to said set position, wherein said sear and sear catch are in engagement in said set positions of said hammer and trigger member and are out of engagement in said released positions of said hammer and trigger member, a disconnector having a hook for engaging said hammer and adapted to be mounted in the fire control mechanism pocket to pivot on said transverse trigger member pivot axis, a locking member adapted to be movably mounted in the fire control mechanism pocket, said locking member being movable between a first position at which said locking member mechanically blocks said trigger member from moving to said released position and a second position at which said locking member does not mechanically block said trigger member allowing said trigger member to be moved to said released position, said locking member spring biased toward said first position and adapted to be moved against said spring bias to said second position by contact from the bolt carrier during forward movement of the bolt carrier as the bolt carrier reaches a substantially in-battery position, and a safety selector adapted to be mounted in the fire control mechanism pocket to pivot between safe, standard semi-automatic, and forced reset semi-automatic positions, said safety selector configured such that, when said safety selector is in said forced reset semi-automatic position, said safety selector causes said disconnector to be repositioned and in doing so prevents said disconnector hook from catching said hammer hook, whereupon in said standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer such that said disconnector hook catches said hammer hook, at which time a user must manually release said trigger member to free said hammer from said disconnector to permit said hammer and trigger member to pivot to said set positions so that the user can pull said trigger member to fire the firearm, and whereupon in said forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of said hammer causing said trigger member to be forced to said set position, said safety selector preventing said disconnector hook from catching said hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull said trigger member to fire the firearm without manually releasing said trigger member.

Art before the examiner

139 references of record, 1 cited by the examiner.

Everything listed here was before the Office and is what a challenge must go beyond. Art the examiner never saw is where an invalidity search starts.

Examiner-cited

  • US20230097725A1 — Firearm Fire Control Group (Exponential Innovation IP Holdings LLC)
Applicant-cited and other (138)
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Classification

  • A61L2300/252 — Polypeptides, proteins, e.g. glycoproteins, lipoproteins, cytokines
  • A61L2300/418 — Agents promoting blood coagulation, blood-clotting agents, embolising agents
  • A61L24/0015 — Medicaments; Biocides
  • A61L24/0021 — Plasticisers
  • A61L24/0031 — Hydrogels or hydrocolloids
  • A61L24/0036 — Porous materials, e.g. foams or sponges
  • A61L24/043 — Mixtures of macromolecular materials
  • A61L2400/04 — Materials for stopping bleeding
  • A61L2430/36 — Materials or treatment for tissue regeneration for embolization or occlusion, e.g. vaso-occlusive compositions or devices
  • F41A17/48 — Automatically operated trigger safeties, i.e. operated by breech opening or closing movement
  • F41A19/10 — Triggers; Trigger mountings
  • F41A19/15 — Modular firing mechanism units
  • F41A19/24 — Release-trigger mechanisms, i.e. the striker element being released during the return movement of the trigger subsequent to trigger pull

Family

  • US12036336B2 — B2 (2024)
  • US20230132953A1 — A1 (2023)
  • US20230355830A1 — A1 (2023)
  • US20240299616A1 — A1 (2024)
  • US20250170297A1 — A1 (2025)
  • US11724003B2 — B2 (2023)
  • US20230221087A1 — A1 (2023)
  • US12274807B2 — B2 (2025)

Abstract

A trigger mechanism that can be used in AR-pattern firearms has a hammer, a trigger member, a disconnector, a locking member, and a “three position” safety selector having safe, standard semi-automatic, and forced reset semi-automatic positions. In the standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of the hammer such that the disconnector hook catches the hammer hook, at which time a user must manually release the trigger member to free the hammer from the disconnector to permit the hammer and trigger member to pivot to the set positions so that the user can pull the trigger member to fire the firearm. In the forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of the hammer causing the trigger member to be forced to the set position, the safety selector preventing the disconnector hook from catching the hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull the trigger member to fire the firearm without manually releasing the trigger member. The locking member is pivotable between a first position at which the locking member mechanically blocks the trigger member from moving to the released position and a second position at which the locking member does not mechanically block the trigger member allowing the trigger member to be moved to the released position. The locking member is spring biased toward the first position and moved against the spring bias to the second position by contact from the bolt carrier during forward movement of the bolt carrier as the bolt carrier reaches a substantially in-battery position.

Also asserted by ABC IP, LLC

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This page is assembled from public records — federal court dockets and the patent's own file — and is updated as the case list changes. It states what the record shows and is not an opinion on the validity or infringement of any claim. Patent data via Google Patents; docket data via CourtListener.