F16H 15/01
Gearings for conveying rotary motion with variable gear ratio, or for reversing
Official title: characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members
F16H15/01 (Gearings for conveying rotary motion with variable gear ratio, or for reversing) appears on 5 US grants and 4 published applications in this corpus.
Search patents in F16H- Granted patents
- 5
- Published applications
- 4
- Assignees
- 4
- Inventors
- 14
- Latest grant
- 17 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multiple MR fluid clutch apparatuses sharing MR fluid17 Aug 2021US 11,092,201 B2Exonetik Inc.
- 3-mode front wheel drive and rear wheel drive continuously variable planetary transmission3 Oct 2017US 9,777,815 B2Dana Corporation
- Field responsive fluids for lubrication and power transmission4 May 2004US 6,729,996 B2General Motors Corporation
- Angular transmission using magnetorheological fluid (MR fluid)18 Jul 2000US 6,089,115 ADana Corporation
- Fluid friction clutch21 Apr 1987US 4,658,671 ASueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG
- Multiple mr fluid clutch apparatuses sharing mr fluid22 Aug 2019US 2019/0257372 A1Exonetik Inc.
- 3-mode front wheel drive and rear wheel drive continuously variable planetary transmission12 May 2016US 2016/0131235 A1Dana Corporation
- Field responsive fluids for lubrication and power transmission30 Oct 2003US 2003/0203788 A1General Motors Corporation
- Continuously variable transmissions using magnetorheological fluid or oil shear and methods of and systems for using the same in a vehicle, in-wheel application17 Jul 2003US 2003/0134707 A1
Most cited
By later US patents
- Fluid friction clutch6US 4,658,671 ASueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · 1987
- Field responsive fluids for lubrication and power transmission6US 6,729,996 B2General Motors Corporation · 2004
- Angular transmission using magnetorheological fluid (MR fluid)3US 6,089,115 ADana Corporation · 2000
- 3-mode front wheel drive and rear wheel drive continuously variable planetary transmission1US 9,777,815 B2Dana Corporation · 2017