ABC IP LLC v. Dunedin Holding LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: ABC IP, LLC (Delaware) and Rare Breed Triggers, Inc. (Texas)
  • Defendant: Dunedin Holding, LLC, d/b/a Mid-Tier Defense (Florida)
  • Plaintiff's Counsel: Office of Kevin C. Maxwell
• Case Identification: 8:26-cv-01627, M.D. Fla., 06/01/2026
• Venue Allegations: Venue is asserted based on Defendant's residence, regular and established place of business, and commission of infringing acts within the Middle District of Florida.
• Core Dispute: Plaintiffs allege that Defendant's "Super Safety" firearm trigger mechanisms infringe five patents related to forced reset triggers, firearm safety mechanisms, and associated components.
• Technical Context: The technology concerns forced reset triggers for semi-automatic firearms, which use the energy from the weapon's cycling action to mechanically reset the trigger, potentially enabling a faster rate of fire than standard trigger mechanisms.
• Key Procedural History: Plaintiff ABC IP, LLC is the assignee and owner of the Asserted Patents, and Plaintiff Rare Breed Triggers, Inc. is the exclusive licensee. No other significant procedural events are mentioned in the complaint.

Case Timeline

Date	Event
2021-11-05	Priority Date for U.S. Patent No. 12,031,784
2022-01-10	Priority Date for U.S. Patent No. 12,636,403
2022-09-08	Priority Date for U.S. Patent No. 12,038,247
2022-09-08	Priority Date for U.S. Patent No. 12,578,159
2023-12-04	Priority Date for U.S. Patent No. 12,529,538
2024-07-09	U.S. Patent No. 12,031,784 Issued
2024-07-16	U.S. Patent No. 12,038,247 Issued
2026-01-20	U.S. Patent No. 12,529,538 Issued
2026-03-17	U.S. Patent No. 12,578,159 Issued
2026-05-26	U.S. Patent No. 12,636,403 Issued
2026-06-01	Complaint Filed

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 12,038,247 - "Firearm Trigger Mechanism"

• Issued: July 16, 2024

The Invention Explained

• Problem Addressed: The patent background describes the limitation of standard semi-automatic triggers, where the user must manually release the trigger to allow it to reset, limiting the rate of fire. It notes that prior art devices for increasing fire rate may require modification of other standard firearm components, such as the bolt carrier U.S. Pat. No. 12,038,247, col. 1:20-63
• The Patented Solution: The invention is a trigger mechanism with a three-position safety selector providing "safe," "standard semi-automatic," and "forced reset semi-automatic" modes U.S. Pat. No. 12,038,247, abstract In forced reset mode, a cam, actuated by the rearward movement of the bolt carrier, "forces the trigger member to the set position," while the safety selector simultaneously prevents the disconnector from catching the hammer. This allows the user to fire again without manually releasing the trigger U.S. Pat. No. 12,038,247, col. 3:1-11 U.S. Pat. No. 12,038,247, abstract
• Technical Importance: This technology aims to provide a "drop-in" module that enables a forced reset capability without requiring modification to other core components of a standard AR-pattern firearm, such as the bolt carrier assembly U.S. Pat. No. 12,038,247, col. 2:23-28

Key Claims at a Glance

• The complaint asserts independent claim 15 Compl. ¶32
• The essential elements of claim 15 include:
  • A firearm trigger mechanism comprising a hammer, a trigger member, a disconnector, a cam, and a safety selector.
  • The mechanism is operable in a "standard semi-automatic position" where rearward movement of the bolt carrier causes the disconnector to catch the hammer, requiring the user to "manually release said trigger member to free said hammer."
  • The mechanism is also operable in a "forced reset semi-automatic position" where rearward movement of the bolt carrier causes the cam to force the trigger to its set position, while the safety selector "prevent[s] said disconnector hook from catching said hammer hook."
  • In the forced reset mode, the user can pull the trigger "without manually releasing said trigger member."
• The complaint reserves the right to assert other claims Compl. ¶32

U.S. Patent No. 12,031,784 - "Adapted Forced Reset Trigger"

• Issued: July 9, 2024

The Invention Explained

• Problem Addressed: The patent explains that forced reset trigger mechanisms designed for one firearm platform (e.g., AR15) may not be compatible with others that have different dimensions (e.g., AR10). Specifically, a locking member long enough to be actuated by an AR10's bolt carrier might interfere with another part of the carrier as it cycles rearward, rendering the device inoperable '784 Patent, col. 1:32-44
• The Patented Solution: The patent discloses a locking device with a "deflectable extension." This extension is hinged or otherwise made separately movable from the main body of the locking member. This design allows the extension to be long enough for actuation by the bolt carrier but also enables it to "deflect or fold" out of the way to avoid interfering with the bolt carrier's rearward movement '784 Patent, col. 2:4-10 '784 Patent, abstract Figure 7 illustrates the extension portion (22) folding rearward as the bolt carrier (16) passes over it '784 Patent, Fig. 7
• Technical Importance: This innovation allows a forced reset trigger system to be adapted for use in multiple firearm platforms with varying bolt carrier geometries without causing interference, enhancing its modularity and application range '784 Patent, col. 1:5-11

Key Claims at a Glance

• The complaint asserts independent claim 1 Compl. ¶46
• The essential elements of claim 1 include:
  • An extended trigger member locking device for a forced reset trigger mechanism.
  • A "locking member" movable between a first (locked) and second (unlocked) position.
  • The locking member includes a "generally upward extension portion" that makes "actuating contact" with the bolt carrier.
  • This extension portion comprises a "body portion" and an "upwardly extending deflectable portion that is separately movable relative to the body portion between an extended position and a deflected position."
• The complaint reserves the right to assert other claims Compl. ¶46

U.S. Patent No. 12,529,538 - "Safety Mechanism for Firearm"

• Issued: January 20, 2026
• Technology Synopsis: The patent describes a safety mechanism comprising a cam selector, a lever, and a trigger, operable in three modes. These modes include a standard mode, an "active reset mode" where the cam selector rotates and moves a portion of the trigger, and a safe mode that prevents the trigger from being pulled '538 Patent, abstract Compl. ¶23 This mechanism is designed to provide multiple firing modes controlled by the selector's interaction with recesses on its bottom side '538 Patent, col. 5:20-34
• Asserted Claims: Independent claim 1 Compl. ¶60
• Accused Features: The "Super Safety" product, particularly its cam selector and multi-mode operation, is alleged to infringe Compl. ¶¶60-62

U.S. Patent No. 12,578,159 - "Firearm Trigger Mechanism"

• Issued: March 17, 2026
• Technology Synopsis: This patent, a continuation of the application leading to the '247 Patent, describes a trigger mechanism with selectable standard semi-automatic and forced reset modes '159 Patent, Related U.S. Application Data In the forced reset mode, a cam actuated by the bolt carrier forces the trigger to reset, while a safety selector prevents the disconnector from catching the hammer, allowing for rapid subsequent shots without manual trigger release '159 Patent, abstract Compl. ¶21
• Asserted Claims: Independent claim 1 Compl. ¶74
• Accused Features: The dual-mode (standard and forced reset) functionality of the "Super Safety" is alleged to infringe Compl. ¶¶74-76

U.S. Patent No. 12,636,403 - "Firearm Trigger Mechanism"

• Issued: May 26, 2026
• Technology Synopsis: This patent covers a trigger mechanism with a safety selector movable between a standard semi-automatic position and a forced reset semi-automatic position Compl. ¶24 It details the different operational sequences in each mode, focusing on whether the disconnector catches the hammer and whether the user must manually reduce pressure on the trigger to fire again '403 Patent, abstract
• Asserted Claims: Independent claim 38 Compl. ¶88
• Accused Features: The selectable standard and forced reset modes of the "Super Safety" are alleged to infringe Compl. ¶¶88-90

III. The Accused Instrumentality

Product Identification

• The accused instrumentality is the "(3-Position) 'Super Safety'" Compl. ¶27

Functionality and Market Context

• The complaint alleges the Super Safety is a firearm trigger mechanism sold via the website mid-tierdefense.com Compl. ¶28 It is offered in several forms: as a "partial kit" with cam and lever components; as a "complete kit" with additional standard components; and as a "complete kit preinstalled in a receiver and/or complete firearm" Compl. ¶¶28a-28c
• Functionally, the complaint claims the Super Safety operates with multiple modes, allowing a user to "switch between safe, standard semiautomatic with disconnector, and forced reset semiautomatic with cam modes by moving the safety selector" Compl. ¶30 The complaint includes a product photograph of a "Super Selector 3-Position Safety Selector for AR-15" Compl. p. 7

IV. Analysis of Infringement Allegations

U.S. Patent No. 12,038,247 Infringement Allegations

Claim Element (from Independent Claim 15)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a hammer having a sear catch and a hook for engaging a disconnector...	The accused Super Safety is installed with a hammer (red) that has a sear catch and a hook for engaging a disconnector (orange). The complaint provides a color-coded diagram of these components Compl. p. 10	¶34	col. 7:45-53
a trigger member having a sear...	The accused product is installed with a trigger member (brown) that has a sear and pivots on a transverse axis.	¶34	col. 7:50-56
a disconnector having a hook for engaging said hammer...	The accused product includes a disconnector (orange) with a hook adapted to engage the hammer (red).	¶34	col. 8:1-3
a cam having a cam lobe... said cam being movable between a first position and a second position, in said second position said cam lobe forces said trigger member towards said set position,	The Super Safety has a cam (yellow) with a lobe that, in forced reset mode, allegedly forces the trigger member (brown) toward the set position. A Plaintiff-generated rendering depicts this action Compl. p. 14	¶34	col. 8:6-12; col. 8:61-65
whereupon in a standard semi-automatic mode... said disconnector hook catches said hammer hook... a user must manually release said trigger member...	In standard mode, the disconnector hook allegedly catches the hammer hook, and the user must manually release the trigger to reset the mechanism.	¶34	col. 8:50-63
whereupon in a forced reset semi-automatic mode... said disconnector hook is prevented from catching said hammer hook... at which time the user can pull said trigger member to fire the firearm.	In forced reset mode, the cam allegedly forces the trigger to reset, and the disconnector hook is prevented from catching the hammer, allowing the user to fire again without manual release.	¶34	col. 9:27-46

U.S. Patent No. 12,031,784 Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a locking member that is movable between a first position in which it locks a trigger... and a second position where it does not restrict movement...	The Super Safety is alleged to operate as a locking member, moving between a locked position that restricts trigger movement and an unlocked position that does not. The complaint provides a rendering of the locked position Compl. p. 23	¶48	col. 2:52-59
the locking member configured to be movably supported by a frame and including a generally upward extension portion configured to make actuating contact with a surface of the bolt carrier,	The Super Safety is supported by the firearm's lower receiver (frame) and has an upward extending lever arm that makes contact with the bolt carrier.	¶48	col. 2:59-62
the locking member having a body portion... and an upwardly extending deflectable portion that is separately movable relative to the body portion between an extended position and a deflected position.	The complaint alleges the Super Safety's upward extending lever arm functions as the claimed "deflectable portion." The complaint's theory appears to equate the standard pivoting motion of a lever with the claimed "separately movable" and "deflectable" function.	¶48	col. 2:62-col. 3:2

• Identified Points of Contention:
  • Scope Questions: For the '784 Patent, a central question will be whether the accused product's pivoting lever arm meets the claim limitation of an "upwardly extending deflectable portion that is separately movable relative to the body portion." The defense may argue that "deflectable" and "separately movable" require a structure, such as the patent's hinged embodiment, that is distinct from a simple, unitary pivoting lever.
  • Technical Questions: For the '247 Patent, the infringement analysis will depend on whether the complex, multi-step sequence of operations described in claim 15 for both "standard" and "forced reset" modes is precisely mirrored by the accused product's functionality. For example, evidence will be required to show that the cam "forces" the trigger to reset and that the disconnector is "prevented" from catching the hammer, as distinct from merely being bypassed or not engaging for other reasons. The Plaintiff-generated diagrams, such as the one on page 17 of the complaint showing the cam in its second position, will be critical evidence in this factual dispute Compl. p. 17

V. Key Claim Terms for Construction

U.S. Patent No. 12,038,247

• The Term: "forces said trigger member towards said set position" (from claim 15)
• Context and Importance: This term is critical because it defines the "forced reset" action. The dispute will likely center on the nature and mechanism of the "force." The patent distinguishes its invention from standard triggers where a spring resets the trigger; here, the cam's interaction with the trigger, driven by the bolt carrier, is the operative mechanism.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification describes the action in general terms, stating the "cam lobe 78 acts upon the cam follower 58 to the pivot trigger member 38 counter-clockwise," which could support a broader definition of "forces" to include any cam-induced pivoting motion '247 Patent, col. 9:48-51
  • Evidence for a Narrower Interpretation: The summary of the invention repeatedly emphasizes this forcing action in contrast to a standard trigger reset, suggesting a specific, mechanically positive action is intended, not just any influence '247 Patent, col. 3:3-5 '247 Patent, col. 3:45-48 The defense may argue the term implies a direct, non-spring-assisted, complete reset.

U.S. Patent No. 12,031,784

• The Term: "deflectable portion that is separately movable relative to the body portion" (from claim 1)
• Context and Importance: This term defines the core inventive concept for adapting the trigger to different firearm platforms. Practitioners may focus on this term because the infringement allegation appears to read this limitation onto a simple pivoting lever, raising the question of whether "deflectable" and "separately movable" mean something more specific.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification states the invention "provides a deflectable extension... that... deflects or folds" '784 Patent, col. 2:4-6, language that could be argued to broadly cover any non-rigid movement, including pivoting. The summary states the extension "is separately movable relative to the body portion," which a simple pivot arguably achieves '784 Patent, col. 2:63-65
  • Evidence for a Narrower Interpretation: The embodiments shown in Figures 2-4 and 8-10 depict a distinct, hinged component (22, 50) attached to the main body (26, 52) via a separate pin (24, 54) or hinge '784 Patent, Figs. 2-4 '784 Patent, Figs. 8-10 The defense may argue the term should be limited to such a multi-part, hinged construction, as this is the only structure disclosed to solve the stated problem of interference.

VI. Other Allegations

• Indirect Infringement: The complaint alleges both induced and contributory infringement for all five patents. It asserts that Defendant induces infringement by "installation of, encouraging, advertising, promoting, and instructing others to use and/or how to use the Super Safety" Compl. ¶35 Compl. ¶49 Compl. ¶63 Compl. ¶77 Compl. ¶91 Contributory infringement is alleged on the basis that components like the "cam or cam lever arm" are specially designed for infringing use and are not suitable for substantial noninfringing use Compl. ¶37 Compl. ¶51 Compl. ¶65 Compl. ¶79 Compl. ¶93
• Willful Infringement: Willfulness is alleged for all five patents. The complaint claims that Defendant "has known or should have known" that its actions constitute infringement, could not "reasonably or subjectively believe that its actions do not constitute infringement," and continued its activities despite this knowledge and the "objectively high likelihood that its actions constitute infringement" Compl. ¶38 Compl. ¶52 Compl. ¶66 Compl. ¶80 Compl. ¶94

VII. Analyst's Conclusion: Key Questions for the Case

1. A core issue will be one of definitional scope: Can the term "deflectable portion that is separately movable," which the '784 Patent discloses in the context of a two-piece hinged assembly designed to avoid geometric interference, be construed to cover the accused product's single, pivoting lever arm?
2. A key evidentiary question will be one of operational equivalence: Does the accused "Super Safety" product perform the exact sequence of mechanical interactions recited in the asserted claims of the '247, '159, and '403 patents, particularly regarding how the cam, safety selector, and disconnector operate in both standard and forced-reset modes?
3. A central claim construction question will be the interpretation of functional language: How will the court construe terms such as "forces said trigger member" from the '247 Patent? The case may turn on whether this requires a specific type of direct mechanical action, as suggested by the patent's problem statement, or if it can be read more broadly to cover the general interaction alleged in the complaint.