Small satellite propulsion system utilizing liquid propellant ullage vapor
US-12442350-B2 · Oct 14, 2025 · US
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Leakage detectors; Purging systems; Filtration systems
Leakage detectors; Purging systems; Filtration systems · 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 | F02K9/54 |
| Official title | Leakage detectors; Purging systems; Filtration systems |
| Display label | Leakage detectors; Purging systems; Filtration systems |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid propellant rocket engine turbopump drain
US-11333074-B2 · May 17, 2022 · US
Distributed fuel modules with hydraulic flow circuit breakers and gaseous flow circuit breakers
US-11286886-B2 · Mar 29, 2022 · US
Distributed fuel modules with hydraulic flow circuit breakers and gaseous flow circuit breakers
US-2020326730-A1 · Oct 15, 2020 · US
Liquid propellant rocket engine turbopump drain
US-2019153955-A1 · May 23, 2019 · US
Method for detecting leaks in a fuel circuit of a gas turbine fuel supply system
US-9933327-B2 · Apr 3, 2018 · US
Small satellite propulsion system utilizing liquid propellant ullage vapor
US-2017363044-A1 · Dec 21, 2017 · US
Method for Detecting Leaks In A Fuel Circuit of a Gas Turbine Fuel Supply System
US-2017052087-A1 · Feb 23, 2017 · US