F16F 3/02
Spring units consisting of several springs: with springs made of steel or
Official title: with springs made of steel or of other material having low internal friction
F16F3/02 (Spring units consisting of several springs: with springs made of steel or) appears on 585 US grants and 563 published applications in this corpus.
Search patents in F16F- Granted patents
- 585
- Published applications
- 563
- Assignees
- 396
- Inventors
- 1,178
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 5 | 0 |
| 2001 | 12 | 2 |
| 2002 | 8 | 7 |
| 2003 | 13 | 9 |
| 2004 | 8 | 21 |
| 2005 | 6 | 16 |
| 2006 | 15 | 9 |
| 2007 | 6 | 14 |
| 2008 | 10 | 12 |
| 2009 | 4 | 8 |
| 2010 | 7 | 17 |
| 2011 | 8 | 19 |
| 2012 | 13 | 20 |
| 2013 | 11 | 28 |
| 2014 | 25 | 25 |
| 2015 | 23 | 24 |
| 2016 | 25 | 25 |
| 2017 | 26 | 22 |
| 2018 | 21 | 46 |
| 2019 | 38 | 44 |
| 2020 | 43 | 39 |
| 2021 | 32 | 31 |
| 2022 | 26 | 31 |
| 2023 | 29 | 30 |
| 2024 | 35 | 26 |
| 2025 | 23 | 20 |
| 2026 | 10 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Garter spring including spacer elements6 Oct 2026US 12,753,672 B2Halliburton Energy Services.Inc.
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems22 Sep 2026US 12,743,014 B2Seescan, Inc.
- Torque balancing device, self-balancing joint, and surgical robot15 Sep 2026US 12,733,917 B2Beijing Surgerii Robotics Company Limited
- Spring module and spring cushion for furniture19 May 2026US 12,628,960 B2New-Tec Integration (Xiamen) Co., Ltd.
- Helical tubular compression-spring28 Apr 2026US 12,612,951 B1
- Spring module formed by connecting spring units and elastic pad17 Sep 2026US 2026/0276049 A1
- Spring member, camera module, and electronic device10 Sep 2026US 2026/0266349 A1Toppan Holdings Inc.
- Spring assembly, camera module, and electronic device20 Aug 2026US 2026/0243324 A1Toppan Holdings Inc.
- Luminaire assembly and clamping element for luminaire assembly13 Aug 2026US 2026/0235279 A1Signify Holding B. V.
- A disc for use in a disc spring, and a disc spring assembly comprising the disc6 Aug 2026US 2026/0226954 A1Tomax AS
Most cited
By later US patents
- Vertebral prosthesis615US 5,306,310 AMAN Ceramics GmbH · 1994
- Memory metal actuator340US 4,553,393 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1985
- System for reducing vibrations in a pressure pumping fleet247US 10,119,381 B2U.S. Well Services, LLC · 2018
- Method and apparatus for an adjustable damper106US 9,452,654 B2Fox Factory, Inc. · 2016
- Method and apparatus for an adjustable damper91US 10,040,329 B2Fox Factory, Inc. · 2018