Precursor compositions comprising a polymeric material, a bromine-containing flame retardant, and antimony trioxide
US-2026078210-A1 · Mar 19, 2026 · US
Shape or structure of solid propellant charges
Shape or structure of solid propellant charges · 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 | F02K9/10 |
| Official title | Shape or structure of solid propellant charges |
| Display label | Shape or structure of solid propellant charges |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 11 |
| 2021 | 8 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rocket engine
US-12473875-B2 · Nov 18, 2025 · US
Rocket motor including an embedded charge assembly (ECA) configured to support a burn rate enhancement (BRE) wire
US-12454929-B1 · Oct 28, 2025 · US
Multistage variable burning rate solid rocket motor and forming method
US-12454928-B2 · Oct 28, 2025 · US
Multistage variable burning rate solid rocket motor and forming method
US-2025084806-A1 · Mar 13, 2025 · US
Device and method for finishing a solid-propellant charge
US-12246433-B2 · Mar 11, 2025 · US
Apparatus and method for manufacturing propellant
US-12172940-B2 · Dec 24, 2024 · US
Throttleable solid propellant system and method
US-2024327313-A1 · Oct 3, 2024 · US
Electrochemical rocket motor
US-12060852-B2 · Aug 13, 2024 · US
Multipulse rocket motor with pressure-equalizing channels
US-2024167435-A1 · May 23, 2024 · US
Ring-shaped booster rocket
US-11852103-B2 · Dec 26, 2023 · US
Rocket engine
US-2023213004-A1 · Jul 6, 2023 · US
Electrochemical rocket motor
US-2023151779-A1 · May 18, 2023 · US
Ring-shaped booster rocket
US-2022268238-A1 · Aug 25, 2022 · US
In-situ solid rocket motor propellant grain aging using liquid
US-11408377-B2 · Aug 9, 2022 · US
Device and method for finishing a solid-propellant charge
US-2022161440-A1 · May 26, 2022 · US
Hybrid rocket motor with integral oxidizer tank
US-11326556-B2 · May 10, 2022 · US
2-pulse gas generator and method of measuring propellant combustion surface position
US-11326557-B2 · May 10, 2022 · US
Apparatus and method for manufacturing propellant
US-2021395162-A1 · Dec 23, 2021 · US
In-situ solid rocket motor propellant grain aging using gas
US-11204307-B2 · Dec 21, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02K9/10?
- CPC F02K9/10 is the Cooperative Patent Classification code for “Shape or structure of solid propellant charges.”
- How many patents are filed under CPC F02K9/10 (Shape or structure of solid propellant charges)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC F02K9/10 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).