Method for controlling of a pump unit and a pump unit for pumping liquid or suspension
US-2025354557-A1 · Nov 20, 2025 · US
for increasing NPSH or dealing with liquids near boiling-point
for increasing NPSH or dealing with liquids near boiling-point · 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 | F04D29/2277 |
| Official title | {for increasing NPSH or dealing with liquids near boiling-point} |
| Display label | for increasing NPSH or dealing with liquids near boiling-point |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling of a pump unit and a pump unit for pumping liquid or suspension
US-2025354561-A1 · Nov 20, 2025 · US
Compressor for CO2 cycle with at least two cascade compression stages for assuring supercritical conditions
US-12338827-B2 · Jun 24, 2025 · US
Heat dissipation module
US-12228146-B2 · Feb 18, 2025 · US
Drainage pump
US-12173723-B2 · Dec 24, 2024 · US
Two-phase cold plate
US-12146506-B2 · Nov 19, 2024 · US
Liquid cooling head with a heat dissipating liquid flowing from a cooling plate to an impeller
US-12098732-B2 · Sep 24, 2024 · US
Method for manufacturing a propeller for a propeller pump, and propeller for a propeller pump
US-12025145-B2 · Jul 2, 2024 · US
Aircraft engine fuel pump
US-11920606-B2 · Mar 5, 2024 · US
Impeller for electric water pump
US-11873819-B2 · Jan 16, 2024 · US
Compressor for co2 cycle with at least two cascade compression stages for assuring supercritical conditions
US-2024011493-A1 · Jan 11, 2024 · US
Heat dissipation module
US-2023413483-A1 · Dec 21, 2023 · US
Inducer tunnel magnetization
US-11846304-B1 · Dec 19, 2023 · US
Improved aircraft engine fuel pump
US-2023279867-A1 · Sep 7, 2023 · US
Method for manufacturing a propeller for a propeller pump, and propeller for a propeller pump
US-2023235744-A1 · Jul 27, 2023 · US
Two-phase cold plate
US-2023065557-A1 · Mar 2, 2023 · US
Liquid cooling head
US-2023067553-A1 · Mar 2, 2023 · US
Pump with axially-elongated annular seal element between inducer and impeller
US-11560899-B2 · Jan 24, 2023 · US
Rotating diffuser pump
US-11396887-B2 · Jul 26, 2022 · US
Gas resistant impeller having lower upthrust for use with a centrifugal pump
US-11293445-B2 · Apr 5, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/2277?
- CPC F04D29/2277 is the Cooperative Patent Classification code for “for increasing NPSH or dealing with liquids near boiling-point.”
- How many patents are filed under CPC F04D29/2277 (for increasing NPSH or dealing with liquids near boiling-point)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/2277 growing?
- Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).