Fuel cell ejector
US-2024159251-A1 · May 16, 2024 · US
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characterised by using specific inducing fluid
characterised by using specific inducing fluid · 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 | F04F5/36 |
| Official title | characterised by using specific inducing fluid |
| Display label | characterised by using specific inducing fluid |
| Total patents | 16 |
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 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Jet pump for gaseous medium
US-2023407888-A1 · Dec 21, 2023 · US
Hydrogen fuel system for aircraft
US-2023339621-A1 · Oct 26, 2023 · US
Boosting production from low pressure or dead wells
US-11639651-B2 · May 2, 2023 · US
Fuel cell system
US-11569516-B2 · Jan 31, 2023 · US
Method for actuating a metering valve
US-2022384825-A1 · Dec 1, 2022 · US
Boosting production from low pressure or dead wells
US-11428082-B2 · Aug 30, 2022 · US
Fuel cell system
US-2022246965-A1 · Aug 4, 2022 · US
Boosting production from low pressure or dead wells
US-2021215031-A1 · Jul 15, 2021 · US
Boosting production from low pressure or dead wells
US-2021115774-A1 · Apr 22, 2021 · US
Fuel gas injection device and fuel cell system
US-10950880-B2 · Mar 16, 2021 · US
Liquid ejector and ejector refrigeration cycle
US-10603985-B2 · Mar 31, 2020 · US
Fuel gas injection device and fuel cell system
US-2019305337-A1 · Oct 3, 2019 · US
Ejector using swirl flow
US-10215196-B2 · Feb 26, 2019 · US
Liquid ejector and ejector refrigeration cycle
US-2017253106-A1 · Sep 7, 2017 · US
Ejector Using Swirl Flow
US-2017102010-A1 · Apr 13, 2017 · US