C10M 171/001
Electrorheological fluids
Official title: {Electrorheological fluids; smart fluids}
C10M171/001 (Electrorheological fluids) appears on 198 US grants and 62 published applications in this corpus.
Search patents in C10M- Granted patents
- 198
- Published applications
- 62
- Assignees
- 108
- Inventors
- 333
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 11 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 16 | 0 |
| 1996 | 17 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 5 |
| 2003 | 4 | 6 |
| 2004 | 4 | 9 |
| 2005 | 4 | 1 |
| 2006 | 5 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 1 | 4 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tribological system25 Nov 2025US 12,480,618 B2Robert Bosch GmbH
- Lubricating oil composition, method for using lubricating oil composition, and method for producing lubricating oil composition31 Dec 2024US 12,180,433 B2Idemitsu Kosan Co., Ltd.
- Degassing electrorheological fluid17 Sep 2024US 12,090,423 B2NIKE, Inc.
- Self-healing bearing device using electric or magnetic fluids7 May 2024US 11,976,690 B2Bifröst Research and Development B.V.
- Degassing electrorheological fluid1 Aug 2023US 11,712,640 B2NIKE, Inc.
- Surface structure for fluid manipulation27 Mar 2025US 2025/0100012 A1Volta Labs, Inc.
- Tribological system29 Feb 2024US 2024/0067894 A1Robert Bosch GmbH
- Lubricating oil composition, method for using lubricating oil composition, and method for producing lubricating oil composition21 Dec 2023US 2023/0407202 A1Idemitsu Kosan Co., Ltd.
- Degassing Electrorheological Fluid12 Oct 2023US 2023/0321562 A1NIKE, Inc.
- Electroviscous fluid and cylinder device25 May 2023US 2023/0159847 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Compressible fluid magnetorheological suspension strut110US 7,413,063 B1Davis Family Irrevocable Trust · 2008
- Suspension strut for use with a compressible magnetorheological fluid106US 7,770,701 B1Horstman, Inc. · 2010
- Magnetorheological fluid compositions and prosthetic knees utilizing same85US 7,101,487 B2Ossur Engineering, Inc. · 2006
- Electrorheological fluids75US 4,772,407 ALord Corporation · 1988
- Electronheological fluids56US 4,687,589 A1987