Centering the housing parts of an axial piston machine
US-12480402-B2 · Nov 25, 2025 · US
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Bearings for cylinder barrels
Bearings for cylinder barrels · 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 | F04B1/2071 |
| Official title | Bearings for cylinder barrels |
| Display label | Bearings for cylinder barrels |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated electro-hydraulic unit housing
US-12435711-B2 · Oct 7, 2025 · US
Integrated electro-hydraulic unit housing
US-2025084837-A1 · Mar 13, 2025 · US
Centering the Housing Parts of an Axial Piston Machine
US-2025043684-A1 · Feb 6, 2025 · US
Axial piston machine with high drive rotational speed
US-11746762-B2 · Sep 5, 2023 · US
Rotary barrel pump having separate guiding means and centering means for the barrel
US-11486372-B2 · Nov 1, 2022 · US
Axial Piston Machine with High Drive Rotational Speed
US-2022220948-A1 · Jul 14, 2022 · US
Hydrostatic axial piston machine with through drive
US-11261841-B2 · Mar 1, 2022 · US
Rotary barrel pump having separate guiding means and centering means for the barrel
US-2021123420-A1 · Apr 29, 2021 · US
Hydrostatic Axial Piston Machine with Through Drive
US-2020325936-A1 · Oct 15, 2020 · US
Hydraulic Actuator
US-2019277269-A1 · Sep 12, 2019 · US
Axial piston machine
US-9909420-B2 · Mar 6, 2018 · US
Hydraulic rotary machine
US-2017159638-A1 · Jun 8, 2017 · US
Hydraulic rotary machine
US-2017159639-A1 · Jun 8, 2017 · US
Water-hydraulic machine
US-2016377066-A1 · Dec 29, 2016 · US
Roller bearing outer race for hydraulic unit
US-9528552-B2 · Dec 27, 2016 · US
Axial piston machine
US-2016230555-A1 · Aug 11, 2016 · US
Roller bearing outer race for hydraulic unit
US-2016208853-A1 · Jul 21, 2016 · US
Hydrostatic Axial Piston Machine
US-2015122115-A1 · May 7, 2015 · US