F16F 1/3665
Wound springs
Official title: {Wound springs}
F16F1/3665 (Wound springs) appears on 35 US grants and 28 published applications in this corpus.
Search patents in F16F- Granted patents
- 35
- Published applications
- 28
- Assignees
- 30
- Inventors
- 77
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 3 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 4 |
| 2016 | 1 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 3 |
| 2019 | 4 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite coil spring with carbon and glass fiber layers31 Mar 2026US 12,590,616 B2Mitsubishi Steel Mfg. Co., Ltd.
- Arrangement for transferring torsion torque, particularly in the form of a torsion spring or drive shaft made of composite fiber materials in order to achieve a high specific material usage20 May 2025US 12,305,729 B2Nemos GmbH
- Flexible organic light-emitting display (OLED) and spring component2 Aug 2022US 11,404,660 B2
- Coil spring and method of fabrication thereof15 Feb 2022US 11,248,674 B2Ressorts Liberte Inc.
- Torsion-loaded rod-shaped component with different fibre reinforcements for tensile and compressive loading3 Aug 2021US 11,078,979 B2thyssenkrupp AG
- Composite coil spring with carbon and glass fiber layers2 Jun 2022US 2022/0170525 A1Mitsubishi Steel Mfg. Co., Ltd.
- Arrangement for transferring torsion torque, particularly in the form of a torsion spring or drive shaft made of composite fiber materials in order to achieve a high specific material usage14 Oct 2021US 2021/0317890 A1Nemos GmbH
- Flexible organic light-emitting display (oled) and spring component17 Jun 2021US 2021/0184159 A1Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Coil spring and method of fabrication thereof27 May 2021US 2021/0156442 A1Ressorts Liberte Inc.
- Wire adapted to elastic members and elastic member2 Jul 2020US 2020/0208702 A1NHK Spring Co., Ltd.
Most cited
By later US patents
- Vertebral prosthesis615US 5,306,310 AMAN Ceramics GmbH · 1994
- Carbon fiber reinforced composite coil spring68US 4,260,143 ACelanese Corporation · 1981
- Multihelical composite spring53US 6,612,556 B2Cornell Research Foundation, Inc. · 2003
- Fiber-reinforced resin coil spring and method of manufacturing the same50US 4,473,217 AKato Hatsujo Kaisha, Ltd. · 1984
- Process for forming improved carbon fiber reinforced composite coil spring47US 4,380,483 ACelanese Corporation · 1983