F16C 33/1035
By a magnetic field acting on a magnetic liquid
Official title: {by a magnetic field acting on a magnetic liquid}
F16C33/1035 (By a magnetic field acting on a magnetic liquid) appears on 77 US grants and 27 published applications in this corpus.
Search patents in F16C- Granted patents
- 77
- Published applications
- 27
- Assignees
- 43
- Inventors
- 155
- Latest grant
- 16 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 6 |
| 2003 | 1 | 6 |
| 2004 | 6 | 1 |
| 2005 | 3 | 2 |
| 2006 | 2 | 5 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic liquid sealing device having heat conductive rod and heat dissipating jacket16 Nov 2021US 11,174,947 B2Tsinghua University
- Semi-active isolators based on magnetorheological nanocomposites28 Feb 2017US 9,581,214 B2The Regents of the University of California
- Compact non-contact mechanical coupling, damping and/or load bearing device22 Oct 2013US 8,562,217 B2Smartin Technologies LLC
- Dynamic pressure bearing and rotation machine employing same30 Aug 2011US 8,007,176 B2Ferrotec Corporation
- Metal bearing12 Oct 2010US 7,810,999 B2Aisin Seiki Kabushiki Kaisha
- Device for generating a variable angular momentum, particularly for the attitude control of spacecraft9 Apr 2026US 2026/0097863 A1Universität Stuttgart
- Magnetic liquid sealing device having heat conductive rod and heat dissipating jacket29 Apr 2021US 2021/0123530 A1Tsinghua University
- Semi-active insolators based on magnetorheological nanocomposites25 Dec 2014US 2014/0376837 A1The Regents of the University of California
- Compact non-contact mechanical coupling, damping and/or load bearing device11 Nov 2010US 2010/0284637 A1Smartin Technologies LLC
- Aerostatic device damper31 Dec 2009US 2009/0324145 A1
Most cited
By later US patents
- Dynamic reflection, illumination, and projection58US 7,130,102 B22006
- Electric motor with ferrofluid bearing54US 4,734,606 A1988
- Multiple magnet transducer52US 6,768,230 B2Rockwell Scientific Licensing, LLC · 2004
- Sealing and bearing means by use of ferrofluid51US 4,486,026 ANippon Seiko Kabushiki Kaisha · 1984
- Electrically conductive ferrofluid compositions and method of preparing and using same51US 4,604,229 AFerrofluidics Corporation · 1986