Propellant charge, propellant charge assembly, and cartridge ammunition
US-2025283701-A1 · Sep 11, 2025 · US
Caseless ammunition; Cartridges having combustible cases · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F42B5/18 |
| Official title | Caseless ammunition; Cartridges having combustible cases |
| Display label | Caseless ammunition; Cartridges having combustible cases |
| Total patents | 14 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 2 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025283701-A1 · Sep 11, 2025 · US
US-2023147155-A1 · May 11, 2023 · US
US-11125541-B2 · Sep 21, 2021 · US
US-11041701-B1 · Jun 22, 2021 · US
US-10837741-B2 · Nov 17, 2020 · US
US-2019331467-A1 · Oct 31, 2019 · US
US-2019277606-A1 · Sep 12, 2019 · US
US-10254092-B1 · Apr 9, 2019 · US
US-9759499-B2 · Sep 12, 2017 · US
US-2017067704-A1 · Mar 9, 2017 · US
US-9500420-B2 · Nov 22, 2016 · US
US-9488452-B1 · Nov 8, 2016 · US
US-2016313099-A1 · Oct 27, 2016 · US
US-9377277-B1 · Jun 28, 2016 · US