Axial Piston Machine with Neutral Valve Integrated in the Pot-Like Housing Part
US-2025314231-A1 · Oct 9, 2025 · US
having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
having cylinder axes coaxial with, or parallel or inclined to, main shaft axis · 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 | F04B1/12 |
| Official title | having cylinder axes coaxial with, or parallel or inclined to, main shaft axis |
| Display label | having cylinder axes coaxial with, or parallel or inclined to, main shaft axis |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston pump for brake system
US-12319255-B2 · Jun 3, 2025 · US
Piston body including an internal space for use in a hydraulic pump or motor
US-12025112-B2 · Jul 2, 2024 · US
Hydraulic pump or motor with mounting configuration for increased torque
US-2024191730-A1 · Jun 13, 2024 · US
Hydraulic pump or motor with mounting configuration for increased torque
US-11953032-B2 · Apr 9, 2024 · US
Power supply comprising a hydraulic machine exhibiting improved integration
US-2024044279-A1 · Feb 8, 2024 · US
Long stroke parallel pump
US-2023407854-A1 · Dec 21, 2023 · US
Long stroke parallel pump
US-2023407856-A1 · Dec 21, 2023 · US
Oil dispersion system using actuator for propellers
US-11754087-B2 · Sep 12, 2023 · US
Hydrostatic piston machine unit
US-11592012-B2 · Feb 28, 2023 · US
Oil dispersion system using actuator for propellers
US-2022364572-A1 · Nov 17, 2022 · US
Hydraulic pump or motor with mounting configuration for increased torque
US-2022252087-A1 · Aug 11, 2022 · US
Axial piston-type hydraulic rotary machine
US-11396872-B2 · Jul 26, 2022 · US
Piston pump for brake system
US-2022185257-A1 · Jun 16, 2022 · US
Axial piston pump for a hydrostatic propulsion drive, hydrostatic propulsion drive with the axial piston pump, and method for control
US-11353110-B2 · Jun 7, 2022 · US
Piston and hydraulic pump or motor
US-2022010786-A1 · Jan 13, 2022 · US
Hydraulic pressurizing medium supply assembly, method, and mobile work machine
US-11156239-B2 · Oct 26, 2021 · US
Axial Piston-Type Hydraulic Rotary Machine
US-2021277891-A1 · Sep 9, 2021 · US
Piston pump for brake
US-11111914-B2 · Sep 7, 2021 · US
Device for supplying ports to a machine section of a hydraulic machine arrangement
US-11067100-B2 · Jul 20, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B1/12?
- CPC F04B1/12 is the Cooperative Patent Classification code for “having cylinder axes coaxial with, or parallel or inclined to, main shaft axis.”
- How many patents are filed under CPC F04B1/12 (having cylinder axes coaxial with, or parallel or inclined to, main shaft axis)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC F04B1/12 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).