Devhold Inc.

United States of America

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IPC Class
F41A 21/32 - Muzzle attachments or glands 15
F41A 21/30 - Silencers 12
F41A 21/44 - Insulation jacketsProtective jackets 6
F41A 21/34 - Flash dampers 4
F41A 21/36 - Muzzle attachments or glands for recoil reduction 1
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Found results for  patents

1.

Heat shield for firearm suppressor

      
Application Number 17358274
Grant Number 11920884
Status In Force
Filing Date 2021-06-25
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner Devhold Inc. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm shield adapted to attach to a firearm suppressor. Suppressors fail to dampen all of the effects of firearm discharge, leaving behind residual effects that may be noticeable. The shield dampens the residual effects of firearm discharge that are not captured by the suppressor. The residual effects are captured by the shield and dispersed throughout one or more interior chambers. The shield easily, quickly, and securely couples to suppressors of varying geometries due to the slidably adjustable components of the shield. The shield is configured to surround the suppressor and axially align with the suppressor. As such, the muzzle of the firearm axially aligns with the shield, the suppressor, and the barrel for an unobstructed projectile path during discharge.

IPC Classes  ?

2.

Firearm suppressor adapter

      
Application Number 17033068
Grant Number 11268779
Status In Force
Filing Date 2020-09-25
First Publication Date 2022-03-08
Grant Date 2022-03-08
Owner Devhold Inc. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable and preferably tool-less suppressor adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a set of compression feet equidistantly spaced around the perimeter of the adapter. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?

3.

Device for dampening residual effects from a firearm suppressor

      
Application Number 16714231
Grant Number 11047640
Status In Force
Filing Date 2019-12-13
First Publication Date 2021-06-29
Grant Date 2021-06-29
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm shield adapted to attach to a firearm suppressor. Suppressors fail to dampen all of the effects of firearm discharge, leaving behind residual effects that may be noticeable. The shield dampens the residual effects of firearm discharge that are not captured by the suppressor. The residual effects are captured by the shield and dispersed throughout one or more interior chambers. The shield easily, quickly, and securely couples to suppressors of varying geometries due to the slidably adjustable components of the shield. The shield is configured to surround the suppressor and axially align with the suppressor. As such, the muzzle of the firearm axially aligns with the shield, the suppressor, and the barrel for an unobstructed projectile path during discharge.

IPC Classes  ?

4.

Firearm adapter

      
Application Number 16718409
Grant Number 11022395
Status In Force
Filing Date 2019-12-18
First Publication Date 2021-06-01
Grant Date 2021-06-01
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A flexible fit, easy to attach and align, firearm adapter that allows secure fitment of a muzzle device, such as a suppressor, to a broad range of firearm sizes and shapes, with a single device. These firearms would include difficult to fit barrel profiles that in many cases would go unsuppressed without this improvement over the prior art. An embodiment includes an anchor securable to a smooth section of a firearm barrel and a housing adapted to engage the anchor. The anchor and housing are sized to reach over or around barrel obstructions. An embodiment includes an alignment guide to bring the barrel into axial alignment with the muzzle device.

IPC Classes  ?

5.

Storage device throttling amount of communicated data depending on suspension frequency of operation

      
Application Number 16428334
Grant Number 10908839
Status In Force
Filing Date 2019-05-31
First Publication Date 2020-05-21
Grant Date 2021-02-02
Owner DEVHOLD INC. (USA)
Inventor Jo, Myung Hyun

Abstract

A storage device includes a memory and a controller. The controller controls the memory such that, in response to a request for a first read operation on the memory while a first write operation is performed on the memory, the first write operation is suspended, and the first read operation is performed, the suspended first write operation is resumed after the first read operation is completed, and second write operation subsequent to the first write operation is performed on the memory after the resumed first write operation is completed. The controller throttles an amount of data communicated to the memory device for the second write operation or for a second read operation subsequent to the first read operation, based on a frequency that the first write operation is suspended.

IPC Classes  ?

  • G06F 13/00 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
  • G06F 3/06 - Digital input from, or digital output to, record carriers

6.

Device for dampening residual effects from a firearm suppressor

      
Application Number 16031483
Grant Number 10508879
Status In Force
Filing Date 2018-07-10
First Publication Date 2019-12-17
Grant Date 2019-12-17
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm shield adapted to attach to a firearm suppressor. Suppressors fail to dampen all of the effects of firearm discharge, leaving behind residual effects that may be noticeable. The shield dampens the residual effects of firearm discharge that are not captured by the suppressor. The residual effects are captured by the shield and dispersed throughout one or more interior chambers. The shield easily, quickly, and securely couples to suppressors of varying geometries due to the slidably adjustable components of the shield. The shield is configured to surround the suppressor and axially align with the suppressor. As such, the muzzle of the firearm axially aligns with the shield, the suppressor, and the barrel for an unobstructed projectile path during discharge.

IPC Classes  ?

7.

Firearm suppressor adapter for barrels having obstructions

      
Application Number 15912965
Grant Number 10352642
Status In Force
Filing Date 2018-03-06
First Publication Date 2019-07-16
Grant Date 2019-07-16
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A firearm adapter that attaches a muzzle device, such as a suppressor to a broad range of firearm sizes and shapes. The adapter can securely attach and align a suppressor to a wide range of barrel diameters and profiles, including, those barrels with various obstructions, protrusions and geometries. An embodiment of the device reaches over or around barrel obstructions to securely attach a housing to an anchor on an unobstructed section of the barrel and further compresses an alignment surface against the muzzle to create longitudinal and concentric alignment between the barrel and the suppressor.

IPC Classes  ?

  • F41A 21/30 - Silencers
  • F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
  • F41A 21/32 - Muzzle attachments or glands

8.

Firearm adapter

      
Application Number 16290193
Grant Number 10527379
Status In Force
Filing Date 2019-03-01
First Publication Date 2019-06-27
Grant Date 2020-01-07
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A flexible fit, easy to attach and align, firearm adapter that allows secure fitment of a muzzle device, such as a suppressor, to a broad range of firearm sizes and shapes, with a single device. These firearms would include difficult to fit barrel profiles that in many cases would go unsuppressed without this improvement over the prior art. An embodiment includes an anchor securable to a smooth section of a firearm barrel and a housing adapted to engage the anchor. The anchor and housing are sized to reach over or around barrel obstructions. An embodiment includes an alignment guide to bring the barrel into axial alignment with the muzzle device.

IPC Classes  ?

9.

Firearm barrel fitment sleeve and method of use

      
Application Number 15625542
Grant Number 10302384
Status In Force
Filing Date 2017-06-16
First Publication Date 2019-05-28
Grant Date 2019-05-28
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A firearm barrel fitment sleeve and method of use. The fitment sleeve is preferably fast-attaching, self-aligning, and securable without the need of a tool. The novel fitment sleeve allows a single firearm accessory adapter to be used with a wide range of firearm barrels by temporarily modifying the size of the barrel diameter without permanently modifying the structure of the firearm. The fitment sleeve is inexpensive and preferably includes a longitudinally extending slot in the lateral wall making a single fitment sleeve usable on a wide variety of barrel diameters. Additionally, the fitment sleeve is heat resistant to avoid melting and/or catching fire when the barrel increases in heat during operation.

IPC Classes  ?

10.

Firearm adapter

      
Application Number 16252957
Grant Number 10739098
Status In Force
Filing Date 2019-01-21
First Publication Date 2019-05-23
Grant Date 2020-08-11
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable and tool-less firearm adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a concentric constriction sleeve along the barrel and a longitudinal compression barrel guide at the muzzle. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?

11.

Firearm adapter

      
Application Number 16253998
Grant Number 10996015
Status In Force
Filing Date 2019-01-22
First Publication Date 2019-05-23
Grant Date 2021-05-04
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable firearm adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a concentric constriction sleeve along the barrel and a barrel guide to funnel firearm muzzle. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?

12.

Firearm adapter configured to mount to a firearm frame

      
Application Number 16195139
Grant Number 10746492
Status In Force
Filing Date 2018-11-19
First Publication Date 2019-03-21
Grant Date 2020-08-18
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm adapter configured to mount to the frame of a firearm. The adapter easily, quickly, accurately, securely, concentrically and repeatably, with or without tools, attaches a suppressor or suppressor adapter to the frame or rail system of a firearm. The adapter includes a rail attachment configured to attach to a plurality of dimensionally inconsistent frames/rails and a bore alignment assembly. Moreover, the adapter is configured to axially align the adapter bore with the barrel bore regardless of the dimensional and axial inconsistencies of the barrel and its bore. The bore alignment assembly preferably includes a suppressor mount axially aligned with the adapter bore thereby ensuring that the suppressor is axially aligned with the bore of the barrel.

IPC Classes  ?

  • F41A 21/32 - Muzzle attachments or glands
  • F41G 11/00 - Details of sighting or aiming apparatusAccessories

13.

Firearm suppressor adapter for firearm rails

      
Application Number 16184582
Grant Number 10274279
Status In Force
Filing Date 2018-11-08
First Publication Date 2019-03-07
Grant Date 2019-04-30
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A firearm adapter that can attach to a rail secured to a firearm barrel and can quickly, accurately, securely, and concentrically attach a suppressor or suppressor extension to the firearm barrel even when the firearm barrel includes a muzzle device, such as a flash hider. The adapter is tool-less and attaches a suppressor or other muzzle device to a variety of rail equipped firearms with different geometries while providing strong securement and proper alignment.

IPC Classes  ?

14.

Firearm barrel alignment guide

      
Application Number 15642467
Grant Number 10190839
Status In Force
Filing Date 2017-07-06
First Publication Date 2019-01-29
Grant Date 2019-01-29
Owner
  • DEVHOLD INC. (USA)
  • DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A firearm barrel alignment device and method of use for quickly and accurately axially aligning an adapter with the barrel of a firearm. The novel barrel alignment device attaches to or is integrated with an adapter and includes an angled or inwardly curved funnel to guide the muzzle of a firearm barrel. The firearm barrel alignment device is heat resistant, preferably, in excess of 1300 degrees Fahrenheit. Moreover, the funnel in the firearm barrel alignment device is adapted to create a seal between the muzzle and the firearm barrel alignment device.

IPC Classes  ?

15.

Firearm adapter configured to mount to a firearm frame

      
Application Number 15674622
Grant Number 10161704
Status In Force
Filing Date 2017-08-11
First Publication Date 2018-12-25
Grant Date 2018-12-25
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm adapter configured to mount to the frame of a firearm. The adapter easily, quickly, accurately, securely, concentrically and repeatably, with or without tools, attaches a suppressor or suppressor adapter to the frame or rail system of a firearm. The adapter includes a rail attachment configured to attach to a plurality of dimensionally inconsistent frames/rails and a bore alignment assembly. Moreover, the adapter is configured to axially align the adapter bore with the barrel bore regardless of the dimensional and axial inconsistencies of the barrel and its bore. The bore alignment assembly preferably includes a suppressor mount axially aligned with the adapter bore thereby ensuring that the suppressor is axially aligned with the bore of the barrel.

IPC Classes  ?

16.

Firearm suppressor adapter

      
Application Number 15790319
Grant Number 10823522
Status In Force
Filing Date 2017-10-23
First Publication Date 2018-11-22
Grant Date 2020-11-03
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable and preferably tool-less suppressor adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a set of compression feet equidistantly spaced around the perimeter of the adapter. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?

17.

Firearm suppressor adapter for barrels having obstructions

      
Application Number 15901219
Grant Number 10082354
Status In Force
Filing Date 2018-02-21
First Publication Date 2018-09-25
Grant Date 2018-09-25
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A suppressor adapter attachable to firearms of various sizes and shapes. The adapter includes an anchor securable to a smooth section of a barrel, preferably proximally with respect to any obstructions located near the muzzle end of the barrel, and a housing configured to engage the anchor. The housing has a size and/or shape that reaches over and/or around various obstructions, protrusions and geometries near the muzzle end of the barrel. The device further includes an alignment surface intended to receive the muzzle of the firearm and guide the muzzle into longitudinal and concentric alignment with a suppressor secured to a distal end of the housing.

IPC Classes  ?

18.

Firearm suppressor adapter

      
Application Number 15499430
Grant Number 10066890
Status In Force
Filing Date 2017-04-27
First Publication Date 2018-09-04
Grant Date 2018-09-04
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable and tool-less suppressor adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a concentric constriction sleeve along the barrel and a longitudinal compression barrel guide at the muzzle. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?

19.

Device for dampening residual effects from a firearm suppressor

      
Application Number 15819893
Grant Number 10048033
Status In Force
Filing Date 2017-11-21
First Publication Date 2018-08-14
Grant Date 2018-08-14
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A universal firearm shield adapted to attach to a firearm suppressor. Suppressors fail to dampen all of the effects of firearm discharge, leaving behind residual effects that may be noticeable. The shield dampens the residual effects of firearm discharge that are not captured by the suppressor. The residual effects are captured by the shield and dispersed throughout one or more interior chambers. The shield easily, quickly, and securely couples to suppressors of varying geometries due to the slidably adjustable components of the shield. The shield is configured to surround the suppressor and axially align with the suppressor. As such, the muzzle of the firearm axially aligns with the shield, the suppressor, and the barrel for an unobstructed projectile path during discharge.

IPC Classes  ?

20.

Firearm suppressor adapter

      
Application Number 15601528
Grant Number 09891017
Status In Force
Filing Date 2017-05-22
First Publication Date 2018-02-13
Grant Date 2018-02-13
Owner DEVHOLD INC. (USA)
Inventor Lee, Darryl S.

Abstract

A fast-attaching, self-aligning, easily adaptable and preferably tool-less suppressor adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a set of compression feet equidistantly spaced around the perimeter of the adapter. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

IPC Classes  ?