Bearing delayed firearm operating systems
US-2025271228-A1 · Aug 28, 2025 · US
having sliding locking elements, e.g. balls, rollers · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F41A3/44 |
| Official title | having sliding locking elements, e.g. balls, rollers |
| Display label | having sliding locking elements, e.g. balls, rollers |
| Total patents | 9 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025271228-A1 · Aug 28, 2025 · US
US-10739102-B2 · Aug 11, 2020 · US
US-10591241-B2 · Mar 17, 2020 · US
US-10488135-B2 · Nov 26, 2019 · US
US-10401109-B2 · Sep 3, 2019 · US
US-2019107356-A1 · Apr 11, 2019 · US
US-2019093972-A1 · Mar 28, 2019 · US
US-2018292158-A1 · Oct 11, 2018 · US
US-2018231344-A1 · Aug 16, 2018 · US