Hydraulic gear pump with hydrostatic shaft bearing and isolated case drain and method of operating a hydraulic gear pump
US-12467455-B2 · Nov 11, 2025 · US
Mechanical Engineering
Mechanical Engineering · 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 | F04C2/101 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling a gear pump
US-12345281-B2 · Jul 1, 2025 · US
Internal gear pump and internal gear motor
US-12234823-B2 · Feb 25, 2025 · US
Flexible crescent for low pressure fuel pump
US-12117003-B2 · Oct 15, 2024 · US
Hydraulic Gear Pump with Hydrostatic Shaft Bearing and Isolated Case Drain and Method of Operating a Hydraulic Gear Pump
US-2024309867-A1 · Sep 19, 2024 · US
Internal gear pump and internal gear motor
US-2024280098-A1 · Aug 22, 2024 · US
Method for controlling a gear pump
US-2024239188-A1 · Jul 18, 2024 · US
Flexible crescent for low pressure fuel pump
US-2024011481-A1 · Jan 11, 2024 · US
Gear pump
US-11739750-B2 · Aug 29, 2023 · US
Hydraulic gear pump with radial pressure compensator
US-11680564-B1 · Jun 20, 2023 · US
Hydraulic gear pump with axial compensation
US-11680567-B1 · Jun 20, 2023 · US
Hydraulic gear pump with radial pressure compensator
US-11506200-B1 · Nov 22, 2022 · US
Gear pump
US-2022243725-A1 · Aug 4, 2022 · US
Food product pump with impeller and star wheel
US-11326597-B2 · May 10, 2022 · US
Laundry treatment apparatus
US-10954625-B2 · Mar 23, 2021 · US
Pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, modular motor and pump family for forming different pump drives with several such electric motors
US-10920771-B2 · Feb 16, 2021 · US
Power transfer system and method using a variable speed ratio regulating device
US-10731735-B1 · Aug 4, 2020 · US
Food product pump with impeller and star wheel
US-2020182243-A1 · Jun 11, 2020 · US
Pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, modular motor and pump family for forming different pump drives with several such electric motors
US-2018340533-A1 · Nov 29, 2018 · US
Laundry treatment apparatus
US-2018155863-A1 · Jun 7, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2/101?
- CPC F04C2/101 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04C2/101 (Mechanical Engineering)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC F04C2/101 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).