Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube
US-12552561-B2 · Feb 17, 2026 · US
Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
Composite barrels, i.e. barrels having multiple layers, e.g. of different materials · 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 | F41A21/02 |
| Official title | Composite barrels, i.e. barrels having multiple layers, e.g. of different materials |
| Display label | Composite barrels, i.e. barrels having multiple layers, e.g. of different materials |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Advanced lightweight barrel design
US-2025283684-A1 · Sep 11, 2025 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2025171161-A1 · May 29, 2025 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2025026490-A1 · Jan 23, 2025 · US
Suppressor with blowout panel
US-12152852-B2 · Nov 26, 2024 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube
US-12139274-B2 · Nov 12, 2024 · US
Thermoplastic canister
US-12025405-B2 · Jul 2, 2024 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2023322407-A1 · Oct 12, 2023 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube
US-11731784-B2 · Aug 22, 2023 · US
Thermoplastic canister
US-2023083121-A1 · Mar 16, 2023 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2023011456-A1 · Jan 12, 2023 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube
US-11319087-B2 · May 3, 2022 · US
Methods for producing composite structures using diffusion or thermal reactions of a plurality of layers
US-11060194-B2 · Jul 13, 2021 · US
Sensor system for advanced smart weapons barrels
US-10948253-B2 · Mar 16, 2021 · US
Systems and methods for electroprocessing a gun barrel using a moving electrode
US-10870140-B2 · Dec 22, 2020 · US
Systems and methods for electroprocessing a gun barrel using a moving electrode
US-10864567-B2 · Dec 15, 2020 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2020339279-A1 · Oct 29, 2020 · US
Composite sporting equipment
US-10794650-B2 · Oct 6, 2020 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube
US-10703506-B2 · Jul 7, 2020 · US
Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable rf transparent launch tube
US-2020140120-A1 · May 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F41A21/02?
- CPC F41A21/02 is the Cooperative Patent Classification code for “Composite barrels, i.e. barrels having multiple layers, e.g. of different materials.”
- How many patents are filed under CPC F41A21/02 (Composite barrels, i.e. barrels having multiple layers, e.g. of different materials)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC F41A21/02 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).