F16F 15/12346
Set of springs
Official title: {Set of springs, e.g. springs within springs}
F16F15/12346 (Set of springs) appears on 69 US grants and 33 published applications in this corpus.
Search patents in F16F- Granted patents
- 69
- Published applications
- 33
- Assignees
- 31
- Inventors
- 124
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 4 |
| 2017 | 1 | 7 |
| 2018 | 6 | 0 |
| 2019 | 5 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 3 |
| 2022 | 0 | 5 |
| 2023 | 5 | 3 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems22 Sep 2026US 12,743,014 B2Seescan, Inc.
- Damper device19 Aug 2025US 12,392,380 B2Exedy Corporation
- Dual rate torsional coupling11 Mar 2025US 12,247,635 B2Lord Corporation
- Torque transmission device with springs in series and torque transmission system comprising such a device3 Sep 2024US 12,078,213 B2Valeo Embrayages
- Torsional vibration damper and hydrodynamic torque converter comprising same24 Oct 2023US 11,796,032 B2Schaeffler Technologies AG & Co. KG
- Torsional vibration reducing apparatus30 Oct 2025US 2025/0334167 A1Unipres Corporation
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems24 Aug 2023US 2023/0266657 A1Seescan, Inc.
- Damper device3 Aug 2023US 2023/0243389 A1Exedy Corporation
- Damper device29 Jun 2023US 2023/0204077 A1Exedy Corporation
- Damper assembly for torque converters29 Dec 2022US 2022/0412434 A1Valeo Kapec Co., Ltd.
Most cited
By later US patents
- Series spring torsional vibration damper39US 4,304,107 ABorg-Warner Corporation · 1981
- High deflection amplitude torsional vibration damper35US 4,139,995 ABorg-Warner Corporation · 1979
- Damper disc34US 4,601,676 AKabushiki Kaisha Daikin Seisakusho · 1986
- Torsion vibration damper30US 4,351,168 AAllis-Chalmers Corporation · 1982
- Series spring vibration dampers29US 4,530,673 ABorg-Warner Corporation · 1985