Ignition Safety System Loading Confirmation Device and Loading Monitoring System Including the Same
US-2026063092-A1 · Mar 5, 2026 · US
elements and safety devices, e.g. pressure relief valves
elements and safety devices, e.g. pressure relief valves · 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 | F02K9/566 |
| Official title | {elements and safety devices, e.g. pressure relief valves} |
| Display label | elements and safety devices, e.g. pressure relief valves |
| Total patents | 40 |
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 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for asynchronous autogenously pressurized in-space propulsion
US-2026054861-A1 · Feb 26, 2026 · US
Propulsion apparatus, flying body and propulsion method
US-12208906-B2 · Jan 28, 2025 · US
System and method for asynchronous autogenously pressurized in-space propulsion
US-12065270-B1 · Aug 20, 2024 · US
Active on orbit fluid propellant management and refueling systems and methods
US-12012233-B2 · Jun 18, 2024 · US
Liquid level equalization for propellant tanks
US-11939938-B2 · Mar 26, 2024 · US
Liquid level equalization for propellant tanks
US-2023392567-A1 · Dec 7, 2023 · US
Active on orbit fluid propellant management and refueling systems and methods
US-2022355954-A1 · Nov 10, 2022 · US
Propulsion apparatus, flying body and propulsion method
US-2022250754-A1 · Aug 11, 2022 · US
Chemical and cold gas propellant systems and methods
US-11346306-B1 · May 31, 2022 · US
Concurrent rocket engine pre-conditioning and tank loading
US-11338943-B2 · May 24, 2022 · US
Pneumatic circuit breaker based self resetting passive overspeed control valve for turbine pump assembly
US-11286887-B2 · Mar 29, 2022 · US
Distributed fuel modules with hydraulic flow circuit breakers and gaseous flow circuit breakers
US-11286886-B2 · Mar 29, 2022 · 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
Flow control system for a rocket engine with parallel fuel passage network
US-10837406-B2 · Nov 17, 2020 · US
Distributed fuel modules with hydraulic flow circuit breakers and gaseous flow circuit breakers
US-2020326730-A1 · Oct 15, 2020 · US
Device and locking of a fueling device
US-10717552-B2 · Jul 21, 2020 · US
Device for modulating a gas ejection section
US-10690090-B2 · Jun 23, 2020 · US
Concurrent rocket engine pre-conditioning and tank loading
US-2020108952-A1 · Apr 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02K9/566?
- CPC F02K9/566 is the Cooperative Patent Classification code for “elements and safety devices, e.g. pressure relief valves.”
- How many patents are filed under CPC F02K9/566 (elements and safety devices, e.g. pressure relief valves)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC F02K9/566 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).