F16F 15/13438
End-caps for springs
Official title: {End-caps for springs}
F16F15/13438 (End-caps for springs) appears on 81 US grants and 29 published applications in this corpus.
Search patents in F16F- Granted patents
- 81
- Published applications
- 29
- Assignees
- 29
- Inventors
- 83
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 3 |
| 2002 | 3 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 3 |
| 2007 | 3 | 1 |
| 2008 | 2 | 2 |
| 2009 | 2 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Damper device and method of assembling same18 Nov 2025US 12,473,961 B2Exedy Corporation
- Damper device19 Jan 2021US 10,895,303 B2Exedy Corporation
- Damper device27 Mar 2018US 9,926,984 B2Exedy Corporation
- Damper device21 Mar 2017US 9,599,186 B2Exedy Corporation
- Damper device21 Mar 2017US 9,599,187 B2Exedy Corporation
- Seat and torsion damper comprising same14 Aug 2025US 2025/0257776 A1Valeo Embrayages
- Damper device and method of assembling same3 Aug 2023US 2023/0243400 A1Exedy Corporation
- Damper device3 Jan 2019US 2019/0003553 A1Exedy Corporation
- Damper device4 Aug 2016US 2016/0223026 A1Nissan Motor Co., Ltd.
- Dual mass flywheel24 Mar 2016US 2016/0084344 A1Hyundai Motor Company
Most cited
By later US patents
- Apparatus for damping torsional vibrations in the power trains of motor vehicles57US 4,739,866 ALuk Lamellen und Kupplungsbau GmbH · 1988
- Apparatus for damping vibrations34US 5,273,372 ALuk Lamellen und Kupplungsbau GmbH · 1993
- Two-mass flywheel34US 5,307,710 AFichtel & Sachs AG · 1994
- Apparatus for counteracting torsional stresses32US 4,788,884 ALuk Lamellen und Kupplungsbau GmbH · 1988
- Torsion damper, especially for motor vehicles27US 5,218,884 AValeo · 1993