F16F 9/53
Means for adjusting damping characteristics by varying fluid viscosity
Official title: Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically {(F16F13/30 takes precedence; brakes comprising a medium with electrically or magnetically controlled friction F16D57/002; electrorheological fluids per se C10M171/001; magnetorheological fluids per se H01F1/447)}
F16F9/53 (Means for adjusting damping characteristics by varying fluid viscosity) appears on 603 US grants and 598 published applications in this corpus.
Search patents in F16F- Granted patents
- 603
- Published applications
- 598
- Assignees
- 275
- Inventors
- 1,131
- Latest grant
- 1 Sep 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
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| 1997 | 5 | 0 |
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| 2000 | 15 | 0 |
| 2001 | 19 | 6 |
| 2002 | 28 | 25 |
| 2003 | 23 | 28 |
| 2004 | 22 | 22 |
| 2005 | 17 | 20 |
| 2006 | 10 | 13 |
| 2007 | 14 | 16 |
| 2008 | 8 | 22 |
| 2009 | 7 | 21 |
| 2010 | 12 | 25 |
| 2011 | 17 | 15 |
| 2012 | 11 | 23 |
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| 2015 | 26 | 32 |
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| 2018 | 14 | 38 |
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| 2020 | 23 | 33 |
| 2021 | 17 | 39 |
| 2022 | 34 | 24 |
| 2023 | 28 | 34 |
| 2024 | 23 | 25 |
| 2025 | 31 | 19 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid-filled cylindrical vibration damping device1 Sep 2026US 12,723,637 B2Sumitomo Riko Company Limited
- Modular rotating shear thickening fluid based object control mechanism18 Aug 2026US 12,710,086 B2Moshun, LLC
- Electrical controller for force dampers23 Jun 2026US 12,663,055 B2Virginia Tech Intellectual Properties, Inc.
- Low acoustic mouse scroll wheel14 Apr 2026US 12,602,116 B2Dell Products L. P.
- System and method for improved heave compensation24 Mar 2026US 12,584,534 B2Grant Prideco, L.P.
- Damper device8 Oct 2026US 2026/0309204 A1Thk Co., Ltd.
- Active vibration isolation device24 Sep 2026US 2026/0287040 A1Honda Motor Co., Ltd.
- Tuned mass damper inerter and parameter design method therefor27 Aug 2026US 2026/0251199 A1South China University of Technology
- System and method for improved heave compensation2 Jul 2026US 2026/0185586 A1Grant Prideco, L.P.
- Magnetorheological damper capable of realizing independent linear and rotational force feedback11 Jun 2026US 2026/0160312 A1Southeast University
Most cited
By later US patents
- Magnetorheological fluid devices267US 5,284,330 ALord Corporation · 1994
- Magnetorheological fluid dampers244US 5,277,281 ALord Corporation · 1994
- Speed-adaptive and patient-adaptive prosthetic knee220US 6,610,101 B2Massachusetts Institute of Technology · 2003
- Active torsional vibration damper210US 5,678,460 AStahl International B.V. · 1997
- Active torsional vibration damper209US 5,553,514 AStahl International B.V. · 1996