Rotation damper with a magnetorheological fluid and damping method
US-2019346008-A1 · Nov 14, 2019 · US
magnetorheological
magnetorheological · 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 | F16F2224/045 |
| Official title | magnetorheological |
| Display label | magnetorheological |
| Total patents | 243 |
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 | 8 |
| 2017 | 16 |
| 2018 | 20 |
| 2019 | 29 |
| 2020 | 34 |
| 2021 | 37 |
| 2022 | 32 |
| 2023 | 27 |
| 2024 | 15 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic squeeze film damper system for a gas turbine engine
US-10465557-B2 · Nov 5, 2019 · US
Window covering system and window covering control apparatus thereof
US-10428899-B2 · Oct 1, 2019 · US
Methods and apparatus for controlling a fluid damper
US-10406883-B2 · Sep 10, 2019 · US
Person-conveying device with an adaptive vibration-damping system, and method for reducing building vibrations transmitted to person-conveying devices
US-10393217-B2 · Aug 27, 2019 · US
Window covering system and window covering control assembly thereof
US-10302172-B2 · May 28, 2019 · US
Active damper for torsional vibration and noise mitigation in a driveline
US-10274040-B2 · Apr 30, 2019 · US
Bearing member, and vibration damping device using same
US-2019040924-A1 · Feb 7, 2019 · US
Active vibration damper for a vehicle driveline component
US-2019011013-A1 · Jan 10, 2019 · US
Magneto-rheological fluid damper
US-2018363725-A1 · Dec 20, 2018 · US
Improved seat-damping devices, systems, and methods
US-2018363724-A1 · Dec 20, 2018 · US
Torque dampener for a vehicle propulsion system
US-2018347664-A1 · Dec 6, 2018 · US
Manipulation device
US-2018320750-A1 · Nov 8, 2018 · US
Magnetorheological-damper-based steering apparatus and methods for reducing steering wheel jerk resulting from off-road wheel impact
US-2018319435-A1 · Nov 8, 2018 · US
Manipulation device
US-2018320749-A1 · Nov 8, 2018 · US
Magneto-rheological fluid damper
US-2018306267-A1 · Oct 25, 2018 · US
Active damper for torsional vibration and noise mitigation in a driveline
US-2018291979-A1 · Oct 11, 2018 · US
Closing assembly for a magneto-rheological damper
US-10072723-B2 · Sep 11, 2018 · US
Vehicular vibration isolation system and apparatus
US-2018238413-A1 · Aug 23, 2018 · US
Person-conveying device with an adaptive vibration-damping system, and method for reducing building vibrations transmitted to person-conveying devices
US-2018231095-A1 · Aug 16, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F2224/045?
- CPC F16F2224/045 is the Cooperative Patent Classification code for “magnetorheological.”
- How many patents are filed under CPC F16F2224/045 (magnetorheological)?
- Our database includes 243 publications tagged with this CPC code.
- Is patent activity under CPC F16F2224/045 growing?
- Publication counts under this code: 15 in 2024 vs 14 in 2025 (latest complete years).