Stator wheel of torque converter and torque converter
US-10132396-B2 · Nov 20, 2018 · US
Combined pump-turbine units
Combined pump-turbine units · 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 | F16H41/04 |
| Official title | Combined pump-turbine units |
| Display label | Combined pump-turbine units |
| Total patents | 164 |
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 | 7 |
| 2016 | 16 |
| 2017 | 19 |
| 2018 | 24 |
| 2019 | 17 |
| 2020 | 23 |
| 2021 | 12 |
| 2022 | 22 |
| 2023 | 15 |
| 2024 | 7 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Torque converter
US-2018328476-A1 · Nov 15, 2018 · US
Torsional vibration damper with an integrated tilger drive plate and a torque converter with a torsional vibration damper with an integrated tilger drive plate
US-10088027-B2 · Oct 2, 2018 · US
Torque converter with fluid coupling damper
US-10030754-B2 · Jul 24, 2018 · US
Necked impeller shell for torque converter
US-10024409-B2 · Jul 17, 2018 · US
Torque converter valve
US-2018163860-A1 · Jun 14, 2018 · US
Hydrodynamic starting element having a pump wheel which can be rotated relative to a housing
US-9995380-B2 · Jun 12, 2018 · US
Multistage piston actuator
US-9995322-B2 · Jun 12, 2018 · US
Torque converter and a method for cooling a clutch assembly of the torque converter
US-9970523-B2 · May 15, 2018 · US
Torque converter turbine including core ring having thinned sections
US-9958046-B2 · May 1, 2018 · US
Hydraulic system for a torque converter
US-9958060-B2 · May 1, 2018 · US
Torque converter for a vehicle
US-2018112757-A1 · Apr 26, 2018 · US
Transmission hydraulic control system
US-9951861-B2 · Apr 24, 2018 · US
Spring retainer plate with lanced rivet tabs
US-9920792-B2 · Mar 20, 2018 · US
Four pass torque converter
US-9915330-B2 · Mar 13, 2018 · US
Power transfer device
US-9885404-B2 · Feb 6, 2018 · US
Torque converter including turbine piston having three pressure chambers
US-2018031098-A1 · Feb 1, 2018 · US
Torque converter with fluid coupling damper
US-2018031100-A1 · Feb 1, 2018 · US
Torsional vibration damper with an integrated tilger drive plate and a torque converter with a torsional vibration damper with an integrated tilger drive plate
US-2017363190-A1 · Dec 21, 2017 · US
Torsional vibration damper and arrangement and method for the damping of a drivetrain of a motor vehicle
US-9841059-B2 · Dec 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16H41/04?
- CPC F16H41/04 is the Cooperative Patent Classification code for “Combined pump-turbine units.”
- How many patents are filed under CPC F16H41/04 (Combined pump-turbine units)?
- Our database includes 164 publications tagged with this CPC code.
- Is patent activity under CPC F16H41/04 growing?
- Publication counts under this code: 7 in 2024 vs 2 in 2025 (latest complete years).