Patent Yard Sign in

Firearms & Defense

472 patents: 472 lapsed.

Open in browse

Patents

Lapsed, fee not paidUS 8,793,921 B1
Firearms & Defense · US 8,793,921 B1

Tangent integrated tilt sight

A pivoting mount for a firearm used to attach a firearm accessory is provided.

Filed2013
LapsedAug 2026
OwnerSolo inventor
Lapsed, fee not paidUS 11,402,169 B1
Firearms & Defense · US 11,402,169 B1

Switch barrel rifle with adjustable headspace

An interchangeable barrel system for a firearm includes one or more barrels each having an outer surface, and an inner surface defining a longitudinal bore open between a muzzle end and an action end.

Filed2020
LapsedAug 2026
OwnerSolo inventor
Drawing from US 10,036,604 B2Lapsed, fee not paid20 drawings
Firearms & Defense · US 10,036,604 B2

Systems and methods for a palm firearm

Examples of the present disclosure are related to systems and methods for a palm firearm.

Filed2016
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,036,611 B1Lapsed, fee not paid17 drawings
Firearms & Defense · US 10,036,611 B1

Crosslock assembly

Filed2015
LapsedJul 2026
OwnerPMD3, LLC
Lapsed, fee not paidUS 11,397,066 B1
Firearms & Defense · US 11,397,066 B1

Muzzle device and blast sleeve

A muzzle device and blast sleeve system that includes a muzzle device having a muzzle device borehole, one or more venting apertures extending between the muzzle device borehole and an outer surface of the muzzle…

Filed2020
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,030,924 B1Lapsed, fee not paid7 drawings
Firearms & Defense · US 10,030,924 B1

Auxiliary bolt control device

The auxiliary bolt control device is for use with an automatic or semi-automatic firearm that utilizes a moveable bolt to feed ammunition from a magazine into the firearm.

Filed2017
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,030,925 B1Lapsed, fee not paid10 drawings
Firearms & Defense · US 10,030,925 B1

Internal firearm locking mechanism

An internal firearm locking mechanism includes a block that fits within the action of a firearm, and a lock that is removably secured to the block and passes into the chamber of the firearm to resist insertion of a…

Filed2015
LapsedJul 2026
OwnerSolo inventor
Lapsed, fee not paidUS 10,030,931 B1
Firearms & Defense · US 10,030,931 B1

Head mounted display-based training tool

A head mounted display (HMD)-based training tool includes a HMD, sensor components, and electronics components.

Filed2011
LapsedJul 2026
OwnerLockheed Martin Corporation
Lapsed, fee not paidUS 10,030,940 B2
Firearms & Defense · US 10,030,940 B2

Firearm accessory attachment clamp

A compound mounting clamp is described that is configured for mounting an accessory (e.g., a laser sight, a telescopic sight, a bayonet, a light) to a firearm that includes either one of a Picatinny-type mounting rail…

Filed2016
LapsedJul 2026
OwnerSIG SAUER, INC.
Lapsed, fee not paidUS 10,030,947 B1
Firearms & Defense · US 10,030,947 B1

Nock for slingshot and slingbow projectile

A nock or an arrow with a nock suitable for being launched with a slingshot or slingbow.

Filed2017
LapsedJul 2026
OwnerBOHNING COMPANY, LTD
Lapsed, fee not paidUS 10,030,952 B1
Firearms & Defense · US 10,030,952 B1

Thermally deployable shroud for affordable precision guided projectile

A deployable shroud provides an aerodynamically smooth surface to minimize the drag otherwise experienced by blunt nose projectiles.

Filed2017
LapsedJul 2026
OwnerThe United States of America as Represented by the Secretary of the Army
Lapsed, fee not paidUS 10,030,955 B1
Firearms & Defense · US 10,030,955 B1

Multi-purpose non-lethal blunt trauma grenade

A multi-purpose non-lethal blunt trauma grenade which produces both blunt trauma effects as well as light and sound effects.

Filed2016
LapsedJul 2026
OwnerThe United States of America as Represented by the Secretary of the Army
Lapsed, fee not paidUS 8,783,184 B1
Firearms & Defense · US 8,783,184 B1

Broadhead push-out bullet

Filed2013
LapsedJul 2026
OwnerBPOB Associates, Trustee for Broadhead POB CRT Trust
Lapsed, fee not paidUS 8,783,567 B2
Firearms & Defense · US 8,783,567 B2

System integration for feasibility display

Systems and methods of integrating weapons systems with the aircraft systems of an aircraft carrying the weapon so as to generate on the aircraft in flight a display indicative of the weapon successfully engaging a…

Filed2010
LapsedJul 2026
OwnerBAE Systems PLC
Lapsed, fee not paidUS 8,788,120 B1
Firearms & Defense · US 8,788,120 B1

Targeting management

Filed2011
LapsedJul 2026
OwnerLockheed Martin Corporation
Lapsed, fee not paidUS 11,391,533 B2
Firearms & Defense · US 11,391,533 B2

Rifle bipod

A rifle bipod with a rifle support for operatively receiving and supporting a portion of a rifle, as well as two legs each having a tubular upper and lower portion and telescopically arranged with an urging element…

Filed2019
LapsedJul 2026
OwnerMCEWIN DESIGN PTY LTD
Drawing from US 10,024,621 B2Lapsed, fee not paid8 drawings
Firearms & Defense · US 10,024,621 B2

Adjustable sighting and shooting firearm mounting vise

An adjustable sighting and shooting firearm mounting vise receives a firearm to assist new shooters or handicap shooters with sighting and discharging the firearm.

Filed2016
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,024,632 B1Lapsed, fee not paid13 drawings
Firearms & Defense · US 10,024,632 B1

Accessory interface or attachment device

An accessory attachment device having a main chassis; a first locking arm and a second locking arm extending from the main chassis; a channel defined between the first locking arm and the second locking arm; a rail…

Filed2016
LapsedJul 2026
OwnerSolo inventor
Lapsed, fee not paidUS 10,024,641 B1
Firearms & Defense · US 10,024,641 B1

Hand grenade with an explosive train initiation indicator

The subject invention provides a grenade which comprises a means of indicating, to a user, that the grenade's striker assembly has been activated, and thus provides an indication that the grenade has been initiated.

Filed2016
LapsedJul 2026
OwnerThe United States of America as Represented by the Secretary of the Army
Lapsed, fee not paidUS 8,780,333 B2
Firearms & Defense · US 8,780,333 B2

Range finder

A range finder adapted for finding the object distance of a subject having a specific height includes a shell unit, an objective lens assembly, a magnifying unit having multiple selectable magnification ratios, and a…

Filed2012
LapsedJul 2026
OwnerAsia Optical International Ltd.
Lapsed, fee not paidUS 11,385,018 B2
Firearms & Defense · US 11,385,018 B2

Pistol grip assembly

A pistol grip assembly having customizable accessories are disclosed here.

Filed2018
LapsedJul 2026
OwnerF-1 Research LLC—Patent Series
Drawing from US 11,385,021 B1Lapsed, fee not paid5 drawings
Firearms & Defense · US 11,385,021 B1

Support hook assembly

A support hook assembly is configured to support a rifle worn by a human.

Filed2019
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,018,436 B1Lapsed, fee not paid3 drawings
Firearms & Defense · US 10,018,436 B1

Captive bearing pin system

In broad embodiment, the present embodiment is a front takedown pin mechanism that improves the longevity and motion of the upper and lower receivers of an AR-15 style firearm.

Filed2017
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,018,437 B2Lapsed, fee not paid7 drawings
Firearms & Defense · US 10,018,437 B2

Firearm bolt catch assembly

An improved firearm bolt catch assembly for the lower receiver of a firearm, the assembly having a lift arm that retains the bolt of the firearm in a retracted position after the cartridge magazine has been emptied,…

Filed2015
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,018,447 B1Lapsed, fee not paid18 drawings
Firearms & Defense · US 10,018,447 B1

Hinged holster for a firearm

A firearm holster has a plate, a firearm enclosure configured to carry a firearm, and an elastic hinge.

Filed2015
LapsedJul 2026
OwnerSolo inventor
Drawing from US 10,018,455 B2Lapsed, fee not paid6 drawings
Firearms & Defense · US 10,018,455 B2

Firearm cleaning shell

An apparatus is disclosed including a bore cleaning device configured to clean a bore of a firearm.

Filed2016
LapsedJul 2026
OwnerSolo inventor
Lapsed, fee not paidUS 8,769,852 B2
Firearms & Defense · US 8,769,852 B2

Flash suppressing and recoil compensating muzzle device

A flash suppressing and recoil compensating muzzle device for use with a firearm provides a muzzle device that reduces recoil and inhibits muzzle flash while preventing audible harmonic resonant ringing after the…

Filed2012
LapsedJul 2026
OwnerSolo inventor
Lapsed, fee not paidUS 8,769,854 B1
Firearms & Defense · US 8,769,854 B1

Solid chassis rifle

A rifle assembly includes a central chassis for carrying an action including a trigger and a trigger guard, the central chassis having a front portion and a rear portion, a rifle fore-end for carrying a barrel, the…

Filed2012
LapsedJul 2026
OwnerSolo inventor
Lapsed, fee not paidUS 8,769,859 B2
Firearms & Defense · US 8,769,859 B2

Firearm sight mount

A sight base is configured to receive and secure a sighting device and is coupled to a base by a pin running in each of the grooves and rotatable about the pins between an aligned position with the base extending…

Filed2011
LapsedJul 2026
OwnerSellmark Corporation
Lapsed, fee not paidUS 8,770,084 B2
Firearms & Defense · US 8,770,084 B2

Suppressor assembly for firearms

A suppressor system includes at least one inner core having a core bore defined therein, the core bore having a nominal core bore diameter.

Filed2011
LapsedJul 2026
OwnerSolo inventor