F16F 15/123
Wound springs
Official title: Wound springs {(F16F15/1213, F16F15/1216, F16F15/127 take precedence)}
F16F15/123 (Wound springs) appears on 845 US grants and 614 published applications in this corpus.
Search patents in F16F- Granted patents
- 845
- Published applications
- 614
- Assignees
- 164
- Inventors
- 1,177
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 13 | 0 |
| 1985 | 16 | 0 |
| 1986 | 22 | 0 |
| 1987 | 36 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 18 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 17 | 0 |
| 1998 | 33 | 0 |
| 1999 | 19 | 0 |
| 2000 | 25 | 0 |
| 2001 | 30 | 4 |
| 2002 | 14 | 7 |
| 2003 | 4 | 7 |
| 2004 | 6 | 6 |
| 2005 | 3 | 8 |
| 2006 | 4 | 4 |
| 2007 | 6 | 13 |
| 2008 | 2 | 11 |
| 2009 | 6 | 28 |
| 2010 | 10 | 19 |
| 2011 | 19 | 17 |
| 2012 | 22 | 28 |
| 2013 | 21 | 31 |
| 2014 | 20 | 29 |
| 2015 | 28 | 42 |
| 2016 | 26 | 51 |
| 2017 | 43 | 67 |
| 2018 | 50 | 46 |
| 2019 | 52 | 39 |
| 2020 | 40 | 42 |
| 2021 | 23 | 42 |
| 2022 | 30 | 27 |
| 2023 | 40 | 17 |
| 2024 | 19 | 10 |
| 2025 | 23 | 10 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16F 15/12353Combinations of dampers303
- F16F 15/1232Characterised by the spring mounting255
- F16F 15/1238With pre-damper, i.e. additional set of springs between flange of main damper156
- F16F 15/12313Characterised by the dimension or shape of spring-containing windows77
- F16F 15/12306Radially mounted springs24
Recent patents
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems22 Sep 2026US 12,743,014 B2Seescan, Inc.
- Torque transmission device and drive train for a motor vehicle26 May 2026US 12,638,056 B2Schaeffler Technologies AG & Co. KG
- Damper device26 May 2026US 12,638,063 B2Aisin Corporation
- Torsion damper device, seat for a torsion damper device and method for manufacturing a torsion damper23 Dec 2025US 12,504,056 B2Valeo Embrayages
- Damper device and method of assembling same18 Nov 2025US 12,473,961 B2Exedy Corporation
- Damper device1 Oct 2026US 2026/0298309 A1Exedy Corporation
- Damper device10 Sep 2026US 2026/0266353 A1Aisin Corporation
- Improved filtering pulley23 Jul 2026US 2026/0210408 A1Muviq S.R.L.
- Power transmission device and torque limiter11 Jun 2026US 2026/0160315 A1Exedy Corporation
- Torsional vibration isolated coupling element4 Jun 2026US 2026/0153131 A1Hasse & Wrede GmbH
Most cited
By later US patents
- Torsional impulse damper for direct connection to universal joint drive shaft152US 4,483,684 ATwin Disc, Incorporated · 1984
- Shaft decoupler77US 6,044,943 ALitens Automotive Partnership · 2000
- Torsion damper including a pre-damper having a housing with hooked tongues, in particular for a motor vehicle60US 5,240,458 AValeo · 1993
- Vibration damper for a torque converter lock-up clutch53US 4,138,003 AGeneral Motors Corporation · 1979
- Fluid transmission device51US 5,713,442 AToyota Jidosha Kabushiki Kaisha · 1998