Axial piston device
US-2026071606-A1 · Mar 12, 2026 · US
with liquid motor and pump combined in one unit
with liquid motor and pump combined in one unit · 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 | F16H39/04 |
| Official title | with liquid motor and pump combined in one unit |
| Display label | with liquid motor and pump combined in one unit |
| Total patents | 32 |
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 | 2 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic connection
US-12351018-B2 · Jul 8, 2025 · US
Hydraulic connection
US-2023241967-A1 · Aug 3, 2023 · US
Machine and drivetrain associated with machine
US-2022169232-A1 · Jun 2, 2022 · US
Quick drain, low mess, hydrostatic transmission filter and plug assembly
US-11065565-B1 · Jul 20, 2021 · US
Hydraulic Motor with Anti-Cogging Features
US-2021207599-A1 · Jul 8, 2021 · US
Transmission, and control system for work vehicle
US-10989291-B2 · Apr 27, 2021 · US
Cradle-mounted swash with trunnion-mounted positioning arms
US-10760683-B2 · Sep 1, 2020 · US
Transmissions system
US-10696157-B2 · Jun 30, 2020 · US
Trunnion swash installations in a transmission and methods of assembly
US-10641390-B1 · May 5, 2020 · US
Actuator unit for controlling hydraulic pump
US-10641389-B2 · May 5, 2020 · US
Transmission, and control system for work vehicle
US-2020132179-A1 · Apr 30, 2020 · US
Hydraulic pump and detachable servo unit
US-10570893-B2 · Feb 25, 2020 · US
Control mechanism for stepless transmission
US-2019390767-A1 · Dec 26, 2019 · US
Hydraulic system and driving unit with deceleration mechanism
US-10502317-B2 · Dec 10, 2019 · US
Hydraulic rotary actuator with built-in mechanical position feedback
US-10316867-B2 · Jun 11, 2019 · US
Axial hydraulic piston pump
US-10302073-B2 · May 28, 2019 · US
Entrained air deflector for a hydrostatic transmission
US-10281035-B2 · May 7, 2019 · US
A transmission system
US-2019031025-A1 · Jan 31, 2019 · US
Entrained air deflector for a hydrostatic transmission
US-2018283546-A1 · Oct 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16H39/04?
- CPC F16H39/04 is the Cooperative Patent Classification code for “with liquid motor and pump combined in one unit.”
- How many patents are filed under CPC F16H39/04 (with liquid motor and pump combined in one unit)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F16H39/04 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).