Drive unit
US-12109876-B2 · Oct 8, 2024 · US
controlled by changing the amount of liquid in the working circuit
controlled by changing the amount of liquid in the working circuit · 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 | F16H61/64 |
| Official title | controlled by changing the amount of liquid in the working circuit |
| Display label | controlled by changing the amount of liquid in the working circuit |
| Total patents | 28 |
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 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling a hydrodynamic machine and hydrodynamic machine
US-11590947-B2 · Feb 28, 2023 · US
Drive unit
US-2022314768-A1 · Oct 6, 2022 · US
Method for controlling a hydrodynamic machine and hydrodynamic machine
US-2021331656-A1 · Oct 28, 2021 · US
Hydraulic shift control system
US-2021222402-A1 · Jul 22, 2021 · US
Valve assembly and system including same for controlling fluid flow to and from a clutch
US-10953863-B2 · Mar 23, 2021 · US
Method for operating a drive train for driving a working machine with variable rotation speed and drive train
US-10876612-B2 · Dec 29, 2020 · US
Valve assembly and system including same for controlling fluid flow to and from a clutch
US-2020398809-A1 · Dec 24, 2020 · US
Automatic transmission
US-10823261-B2 · Nov 3, 2020 · US
Valve assembly and system including same for controlling fluid flow to and from a clutch
US-10793133-B2 · Oct 6, 2020 · US
Hydrodynamic machine, in particular hydrodynamic converter
US-2020063807-A1 · Feb 27, 2020 · US
Hydraulic control device and hydraulic control method of transmission
US-10533660-B2 · Jan 14, 2020 · US
System and method for filling torque converter with fluid
US-10480649-B2 · Nov 19, 2019 · US
Method For Operating A Drive Train For Driving A Working Machine With Variable Rotation Speed And Drive Train
US-2019346031-A1 · Nov 14, 2019 · US
Transmission park control system
US-10408347-B2 · Sep 10, 2019 · US
System and method for filling torque converter with fluid
US-2019249773-A1 · Aug 15, 2019 · US
Automatic transmission
US-10309530-B2 · Jun 4, 2019 · US
Transmission park control system
US-2019120377-A1 · Apr 25, 2019 · US
Control apparatus of the idle rotation speed of the internal combustion engine of a vehicle with an automatic transmission and a torque converter
US-10131358-B2 · Nov 20, 2018 · US
Hydraulic control device and hydraulic control method of transmission
US-2018313446-A1 · Nov 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16H61/64?
- CPC F16H61/64 is the Cooperative Patent Classification code for “controlled by changing the amount of liquid in the working circuit.”
- How many patents are filed under CPC F16H61/64 (controlled by changing the amount of liquid in the working circuit)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F16H61/64 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2024 (latest complete years).