F16F 15/1211
C-shaped springs
Official title: {C-shaped springs}
F16F15/1211 (C-shaped springs) appears on 14 US grants and 7 published applications in this corpus.
Search patents in F16F- Granted patents
- 14
- Published applications
- 7
- Assignees
- 11
- Inventors
- 25
- Latest grant
- 5 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 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 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Torsional vibration damper5 Jul 2022US 11,378,154 B2Schaeffler Technologies AG & Co. KG
- Filtering pulley25 Aug 2020US 10,753,453 B2Dayco Europe S.R.L.
- Isolator assembly and a vehicle including the isolator assembly21 Apr 2020US 10,626,951 B2GM Global Technology Operations LLC
- Low frequency torsional spring-damper7 Apr 2020US 10,612,620 B2Optimized Solutions, LLC
- Vehicle propulsion system torque transfer vibration attenuation mechanism14 Aug 2018US 10,047,822 B1
- Torsional vibration damper28 Jan 2021US 2021/0025474 A1Schaeffler Technologies AG & Co. KG
- Low frequency torsional spring-damper10 Oct 2019US 2019/0309821 A1Optimized Solutions, LLC
- Isolator assembly and a vehicle including the isolator assembly14 Feb 2019US 2019/0048970 A1GM Global Technology Operations LLC
- Filtering pulley22 Feb 2018US 2018/0051792 A1Dayco Europe S.R.L.
- Blade-type torsional damper17 Aug 2017US 2017/0234400 A1Valeo Embrayages
Most cited
By later US patents
- Torsional dampers19US 4,480,736 AValeo · 1984
- Torsional active vibration control system14US 6,889,803 B2American Axle & Manufacturing, Inc. · 2005
- Torsional vibration damper11US 4,210,234 AGeneral Motors Corporation · 1980
- Torsional sleeve coupling8US 4,795,403 ADana Corporation · 1989
- Torsional active vibration control system6US 7,004,291 B2American Axle & Manufacturing, Inc. · 2006