Bolt carrier and bolt for gas operated firearms
US-2026002746-A1 · Jan 1, 2026 · US
Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F41A3/64 |
| Official title | Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings |
| Display label | Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Locking device for installing a handle assembly of a handgun
US-12405074-B2 · Sep 2, 2025 · US
Locking device for installing a handle assembly of a handgun
US-2025123065-A1 · Apr 17, 2025 · US
Bolt carrier and bolt for gas operated firearms
US-12241708-B2 · Mar 4, 2025 · US
Connection for the upper receiver part and the lower receiver part of a firearm
US-12044499-B2 · Jul 23, 2024 · US
Bolt carrier and bolt for gas operated firearms
US-2024093954-A1 · Mar 21, 2024 · US
Bolt carrier and bolt for gas operated firearms
US-11828560-B2 · Nov 28, 2023 · US
Connection for the upper receiver part and the lower receiver part of a firearm
US-2023341200-A1 · Oct 26, 2023 · US
Bolt carrier and bolt for gas operated firearms
US-2023053496-A1 · Feb 23, 2023 · US
Bolt carrier and bolt for gas operated firearms
US-11493292-B2 · Nov 8, 2022 · US
Low friction inserts for bolt carrier group
US-11353275-B2 · Jun 7, 2022 · US
Low friction inserts for bolt carrier group
US-2021285736-A1 · Sep 16, 2021 · US
Bolt carrier and bolt for gas operated firearms
US-2020333095-A1 · Oct 22, 2020 · US
Recoil assembly for a machine gun
US-10746493-B1 · Aug 18, 2020 · US
Light gun breech position detector
US-10634442-B2 · Apr 28, 2020 · US
Bolt carrier and bolt for gas operated firearms
US-10598452-B2 · Mar 24, 2020 · US
Light gun breech position detector
US-2019219350-A1 · Jul 18, 2019 · US
Pistol
US-10209019-B2 · Feb 19, 2019 · US
Pistol
US-2018245868-A1 · Aug 30, 2018 · US
Bolt carrier and bolt for gas operated firearms
US-2018066906-A1 · Mar 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F41A3/64?
- CPC F41A3/64 is the Cooperative Patent Classification code for “Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings.”
- How many patents are filed under CPC F41A3/64 (Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC F41A3/64 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).