Combustor for rocket engine
US-2022364529-A1 · Nov 17, 2022 · US
Injectors
Injectors · 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 | F02K9/52 |
| Official title | Injectors |
| Display label | Injectors |
| Total patents | 113 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 10 |
| 2022 | 11 |
| 2023 | 14 |
| 2024 | 13 |
| 2025 | 17 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rocket engine with integrated combustor head and turbopump
US-2022205410-A1 · Jun 30, 2022 · US
Injection device for liquid rocket
US-2022145832-A1 · May 12, 2022 · US
Vortex thruster system including catalyst bed with screen assembly
US-2022120240-A1 · Apr 21, 2022 · US
Detonation Engine having a Discontinuous Detonation Chamber
US-2021372324-A1 · Dec 2, 2021 · US
Injector with injector elements in circumferential rows that alternate between counter-clockwise and clockwise swirl
US-2021363940-A1 · Nov 25, 2021 · US
Copper combustion chamber attached to injector by non-copper weld transition ring
US-11181077-B2 · Nov 23, 2021 · US
Abnormality determination device and abnormality determination method
US-11156516-B2 · Oct 26, 2021 · US
Rocket propulsion system and method for operating a rocket propulsion system
US-11143144-B2 · Oct 12, 2021 · US
Injection apparatus for a rocket engine
US-11111882-B2 · Sep 7, 2021 · US
Injection element having an ignition device
US-10989144-B2 · Apr 27, 2021 · US
Rocket propellant mixing and fueling systems and methods
US-10934030-B2 · Mar 2, 2021 · US
Method for suppressing the pogo effect
US-10914268-B2 · Feb 9, 2021 · US
Systems, Apparatuses And Methods For Improved Rotation Detonation Engines
US-2021003285-A1 · Jan 7, 2021 · US
Thrust augmentation of an additively manufactured hybrid rocket system using secondary oxidizer injection
US-2020370513-A1 · Nov 26, 2020 · US
Copper combustion chamber attached to injector by non-copper weld transition ring
US-2020318576-A1 · Oct 8, 2020 · US
Three-dimensional additive manufactured product and three-dimensional additive manufacturing method
US-2020232418-A1 · Jul 23, 2020 · US
Propellant injector allowing propellant to be discharged while ensuring uniform injection
US-10655565-B2 · May 19, 2020 · US
Rotating detonation combustor with contoured inlet
US-2020149496-A1 · May 14, 2020 · US
Fuel staging for rotating detonation combustor
US-2020132020-A1 · Apr 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02K9/52?
- CPC F02K9/52 is the Cooperative Patent Classification code for “Injectors.”
- How many patents are filed under CPC F02K9/52 (Injectors)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC F02K9/52 growing?
- Publication counts under this code: 13 in 2024 vs 17 in 2025 (latest complete years).