Gas generator
US-12595991-B2 · Apr 7, 2026 · US
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Cartridge cases characterised by the material used, e.g. coatings (for initiator cases F42B3/11)
Cartridge cases characterised by the material used, e.g. coatings (for initiator cases F42B3/11) · 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 | F42B3/28 |
| Official title | Cartridge cases characterised by the material used, e.g. coatings (for initiator cases F42B3/11) |
| Display label | Cartridge cases characterised by the material used, e.g. coatings (for initiator cases F42B3/11) |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ammunition sealant flow features
US-2025130025-A1 · Apr 24, 2025 · US
Gas generator
US-2025076010-A1 · Mar 6, 2025 · US
Modular scalable effect munition
US-11841215-B2 · Dec 12, 2023 · US
Modular scalable effect munition
US-2022307807-A1 · Sep 29, 2022 · US
Actuator
US-10910180-B2 · Feb 2, 2021 · US
Actuator
US-10867764-B2 · Dec 15, 2020 · US
High-density thermodynamically stable nanostructured copper-based bulk metallic systems, and methods of making the same
US-10487375-B2 · Nov 26, 2019 · US
Extraction charge for underground threats
US-10365073-B1 · Jul 30, 2019 · US
Actuator
US-2019189374-A1 · Jun 20, 2019 · US
Actuator
US-2019122842-A1 · Apr 25, 2019 · US
Dissolvable perforating device
US-10082008-B2 · Sep 25, 2018 · US
High-density thermodynamically stable nanostructured copper-based bulk metallic systems, and methods of making the same
US-9822430-B2 · Nov 21, 2017 · US
Dissolvable perforating device
US-2017175500-A1 · Jun 22, 2017 · US
Explosive device for breaching doors and walls
US-9644925-B1 · May 9, 2017 · US
High-density thermodynamically stable nanostructured copper-based bulk metallic systems, and methods of making the same
US-2016319397-A1 · Nov 3, 2016 · US