Pump unit
US-2025129787-A1 · Apr 24, 2025 · US
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having non-centrifugal stages, e.g. centripetal
having non-centrifugal stages, e.g. centripetal · 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 | F04D1/02 |
| Official title | having non-centrifugal stages, e.g. centripetal |
| Display label | having non-centrifugal stages, e.g. centripetal |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Charge pump for electric submersible pump (ESP) assembly
US-11867035-B2 · Jan 9, 2024 · US
Charge Pump for Electric Submersible Pump (ESP) Assembly
US-2023105823-A1 · Apr 6, 2023 · US
Integrated connector for multi-stage compressor
US-11486618-B2 · Nov 1, 2022 · US
Regenerative pump start and actuation stage for high-speed centrifugal fuel pump
US-2021277902-A1 · Sep 9, 2021 · US
Integrated connector for multi-stage compressor
US-2021108838-A1 · Apr 15, 2021 · US
Centrifugal pump with integrated axial flux permanent magnet motor
US-10626871-B2 · Apr 21, 2020 · US
Coupling and a method of using the same
US-10234017-B2 · Mar 19, 2019 · US
Centrifugal compressor apparatus and method for preventing surge therein
US-10202980-B2 · Feb 12, 2019 · US
Device with a torque-proof first structural component and a second structural component that is connected at least in certain parts in a rotatable manner to the first structural component
US-10100918-B2 · Oct 16, 2018 · US
Centrifugal pump with integrated axial flux permanent magnet motor
US-2017159661-A1 · Jun 8, 2017 · US
Cooling system with integrated fill and drain pump
US-2016242326-A1 · Aug 18, 2016 · US
Device with a torque-proof first structural component and a second structural component that is connected at least in certain parts in a rotatable manner to the first structural component
US-2016160993-A1 · Jun 9, 2016 · US
Coupling and a method of using the same
US-2016102751-A1 · Apr 14, 2016 · US