Magnetorheological (mr) clutches for hybrid drivetrain power distribution
US-2026042545-A1 · Feb 12, 2026 · US
the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001)
the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001) · 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 | F16D37/008 |
| Official title | {the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001)} |
| Display label | the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001) |
| Total patents | 43 |
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 | 8 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetorheological (MR) clutches for hybrid drivetrain power distribution
US-12448143-B2 · Oct 21, 2025 · US
Magnetorheological (MR) Clutches for Hybrid Drivetrain Power Distribution
US-2024375783-A1 · Nov 14, 2024 · US
Clutch system with phase changing materials
US-11953061-B2 · Apr 9, 2024 · US
High-stability and large-torque magnetorheological fluid clutch
US-11879507-B2 · Jan 23, 2024 · US
High-stability and large-torque magnetorheological fluid clutch
US-2023265898-A1 · Aug 24, 2023 · US
Combined isolation and torsional vibration damping device
US-11732774-B2 · Aug 22, 2023 · US
Aircraft steering system, aircraft, and aircraft steering method
US-11459092-B2 · Oct 4, 2022 · US
Torque generating device
US-11401984-B2 · Aug 2, 2022 · US
Clutch system with phase changing materials
US-2022178406-A1 · Jun 9, 2022 · US
Clutch apparatus, systems, and related methods for use with vehicle stabilizer bars
US-11280376-B2 · Mar 22, 2022 · US
Brake using magnetorheological transmission and brake-by-wire
US-11268586-B2 · Mar 8, 2022 · US
Clutch apparatus, systems, and related methods for use with vehicle stabilizer bars
US-2021396279-A1 · Dec 23, 2021 · US
Operating device
US-11205944-B2 · Dec 21, 2021 · US
Pump drivetrain damper system and control systems and methods for same
US-11181101-B2 · Nov 23, 2021 · US
Combined isolation and torsional vibration damping device
US-2021324937-A1 · Oct 21, 2021 · US
Antagonistically driven differential for mechanical actuator
US-11022206-B1 · Jun 1, 2021 · US
Antagonistically Driven Differential for Mechanical Actuator
US-2021148445-A1 · May 20, 2021 · US
Rheological fluid lock of shaft to housing
US-10738540-B2 · Aug 11, 2020 · US
Nonaqueous suspension exhibiting electrorheological effect, and damper using same
US-2020216634-A1 · Jul 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D37/008?
- CPC F16D37/008 is the Cooperative Patent Classification code for “the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001).”
- How many patents are filed under CPC F16D37/008 (the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids (composition of such fluids C10M171/001))?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC F16D37/008 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).