Rocket injector subscale stability assessment with telescoping throat or moveable injector plate
US-12435683-B2 · Oct 7, 2025 · US
Closures for nozzles; Nozzles comprising ejectable or discardable elements
Closures for nozzles; Nozzles comprising ejectable or discardable elements · 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 | F02K9/978 |
| Official title | {Closures for nozzles; Nozzles comprising ejectable or discardable elements} |
| Display label | Closures for nozzles; Nozzles comprising ejectable or discardable elements |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rocket injector subscale stability assessment with telescoping piston
US-2025290469-A1 · Sep 18, 2025 · US
Rocket injector subscale stability assessment with telescoping throat or moveable injector plate
US-2025290470-A1 · Sep 18, 2025 · US
Push-pull valve
US-2025283553-A1 · Sep 11, 2025 · US
Rocket injector subscale stability assessment with telescoping piston
US-12404823-B2 · Sep 2, 2025 · US
Rocket injector subscale stability assessment with telescoping piston
US-2024218845-A1 · Jul 4, 2024 · US
Rocket injector subscale stability assessment with telescoping throat or moveable injector plate
US-2024218846-A1 · Jul 4, 2024 · US
Metal-stabilized propellant grain for gun-fired rocket motor, and rocket motor baffled end cap for reliable gunfire
US-11879410-B2 · Jan 23, 2024 · US
Liquid rocket engine assemblies and related methods
US-11846256-B2 · Dec 19, 2023 · US
Metal-stabilized propellant grain for gun-fired rocket motor, and rocket motor baffled end cap for reliable gunfire
US-2022025835-A1 · Jan 27, 2022 · US
Liquid rocket engine assemblies and related methods
US-2021262417-A1 · Aug 26, 2021 · US
Liquid rocket engine assemblies and related methods
US-11028802-B2 · Jun 8, 2021 · US
Flexible bearing assemblies, rocket motors including such assemblies, and methods of forming flexible bearings
US-10815936-B2 · Oct 27, 2020 · US
Resin transfer molded rocket motor nozzle
US-10760531-B2 · Sep 1, 2020 · US
Fragmenting nozzle system
US-10690091-B2 · Jun 23, 2020 · US
Device for modulating a gas ejection section
US-10690090-B2 · Jun 23, 2020 · US
Integrated thruster
US-10662898-B2 · May 26, 2020 · US
Fragmenting nozzle system
US-10598129-B2 · Mar 24, 2020 · US
Spacecraft nozzle comprising an improved deployment system
US-10578056-B2 · Mar 3, 2020 · US
Aerospike rocket motor assembly
US-10378483-B2 · Aug 13, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02K9/978?
- CPC F02K9/978 is the Cooperative Patent Classification code for “Closures for nozzles; Nozzles comprising ejectable or discardable elements.”
- How many patents are filed under CPC F02K9/978 (Closures for nozzles; Nozzles comprising ejectable or discardable elements)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F02K9/978 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).