Hydrostatic radial piston unit
US-12523201-B2 · Jan 13, 2026 · US
by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel
by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel · 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 | F03C1/045 |
| Official title | {by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel} |
| Display label | by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fabrication of nanotube bundles and reactors for the same
US-2025361856-A1 · Nov 27, 2025 · US
Hydraulic machine provided with a direction changing drawer
US-2025327437-A1 · Oct 23, 2025 · US
Multi piston machine with at least three switchable displacement volumes
US-12404832-B2 · Sep 2, 2025 · US
Electronically commutated hydraulic machine and operating method to reduce generation of resonance effects
US-12372083-B2 · Jul 29, 2025 · US
Electronically commutated hydraulic machine and operating method to reduce generation of resonance effects
US-2023118844-A1 · Apr 20, 2023 · US
Apparatus with hydraulic machine controller
US-11555293-B2 · Jan 17, 2023 · US
Multi Piston Machine with at least Three Switchable Displacement Volumes
US-2022389902-A1 · Dec 8, 2022 · US
Apparatus with hydraulic machine controller
US-2022356678-A1 · Nov 10, 2022 · US
Apparatus with hydraulic machine controller
US-11454003-B2 · Sep 27, 2022 · US
Apparatus with hydraulic machine controller
US-2022049462-A1 · Feb 17, 2022 · US
Displacement of an object with hydraulic actuators
US-11137330-B2 · Oct 5, 2021 · US
Apparatus
US-10995476-B2 · May 4, 2021 · US
Distribution device for a hydraulic machine and a hydraulic machine fitted with such a device
US-10690109-B2 · Jun 23, 2020 · US
Distributer phase shifter for a hydraulic pump motor
US-10632829-B2 · Apr 28, 2020 · US
Apparatus
US-2020080286-A1 · Mar 12, 2020 · US
Distribution device for hydraulic machine
US-10563641-B2 · Feb 18, 2020 · US
Displacement of an object with hydraulic actuators
US-2019226959-A1 · Jul 25, 2019 · US
Hydraulic transmission
US-9976641-B2 · May 22, 2018 · US
Distribution device for a hydraulic machine
US-2017248241-A1 · Aug 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03C1/045?
- CPC F03C1/045 is the Cooperative Patent Classification code for “by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel.”
- How many patents are filed under CPC F03C1/045 (by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F03C1/045 growing?
- Publication counts under this code: 2 in 2023 vs 4 in 2025 (latest complete years).