A61F 2002/30566
Helical springs
Official title: {Helical springs}
A61F2002/30566 (Helical springs) appears on 395 US grants and 502 published applications in this corpus.
Search patents in A61F- Granted patents
- 395
- Published applications
- 502
- Assignees
- 157
- Inventors
- 585
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 4 | 7 |
| 2003 | 11 | 11 |
| 2004 | 7 | 25 |
| 2005 | 2 | 39 |
| 2006 | 13 | 37 |
| 2007 | 12 | 38 |
| 2008 | 7 | 34 |
| 2009 | 20 | 28 |
| 2010 | 25 | 20 |
| 2011 | 23 | 18 |
| 2012 | 23 | 42 |
| 2013 | 22 | 9 |
| 2014 | 16 | 16 |
| 2015 | 25 | 18 |
| 2016 | 15 | 21 |
| 2017 | 18 | 17 |
| 2018 | 9 | 13 |
| 2019 | 18 | 14 |
| 2020 | 14 | 19 |
| 2021 | 21 | 14 |
| 2022 | 13 | 18 |
| 2023 | 7 | 12 |
| 2024 | 13 | 10 |
| 2025 | 11 | 14 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Shoulder implants and methods of use and assembly8 Sep 2026US 12,728,011 B2Stryker European Operations Limited
- Flexible interbody implant25 Aug 2026US 12,714,579 B2VB Spine US Opco LLC
- Hip joint method18 Aug 2026US 12,708,375 B2
- Hip joint method28 Jul 2026US 12,690,975 B2
- Expandable and adjustable lordosis interbody fusion system26 May 2026US 12,636,166 B2Adcura, Inc.
Most cited
By later US patents
- Artificial spinal prosthesis1,218US 5,123,926 A1992
- V-thread fusion cage and method of fusing a bone joint1,185US 4,961,740 ASurgical Dynamics, Inc. · 1990
- Artificial spinal disc1,110US 4,759,769 AHealth & Research Services Inc. · 1988
- Spinal fusion implant and method of insertion thereof1,008US 5,782,832 ASurgical Dynamics, Inc. · 1998
- Artificial intervertebral disc993US 4,309,777 A1982