A61F 2002/6664
Dual structures made of two connected cantilevered leaf springs
Official title: {Dual structures made of two connected cantilevered leaf springs}
A61F2002/6664 (Dual structures made of two connected cantilevered leaf springs) appears on 173 US grants and 210 published applications in this corpus.
Search patents in A61F- Granted patents
- 173
- Published applications
- 210
- Assignees
- 68
- Inventors
- 268
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 2 | 4 |
| 2004 | 3 | 5 |
| 2005 | 6 | 13 |
| 2006 | 0 | 7 |
| 2007 | 3 | 1 |
| 2008 | 6 | 5 |
| 2009 | 5 | 1 |
| 2010 | 4 | 2 |
| 2011 | 1 | 5 |
| 2012 | 3 | 5 |
| 2013 | 6 | 11 |
| 2014 | 6 | 10 |
| 2015 | 10 | 15 |
| 2016 | 7 | 17 |
| 2017 | 7 | 9 |
| 2018 | 13 | 16 |
| 2019 | 9 | 15 |
| 2020 | 10 | 9 |
| 2021 | 8 | 15 |
| 2022 | 8 | 13 |
| 2023 | 12 | 11 |
| 2024 | 8 | 8 |
| 2025 | 8 | 3 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Prosthetic/orthosis spring layer(s) with composite rivet(s)17 Mar 2026US 12,575,949 B2Camp Scandinavia AB
- Prosthetic foot3 Mar 2026US 12,564,502 B2Willowwood Global LLC
- Prosthetic foot23 Jul 2026US 2026/0207353 A1Willowwood Global LLC
- Prosthetic foot with removable flexible members21 May 2026US 2026/0137529 A1Ossur Iceland Ehf
- Prosthetic foot with composite attachment16 Apr 2026US 2026/0102261 A1Willowwood Global LLC
- Prosthetic foot component19 Mar 2026US 2026/0076811 A1
- Prosthetic foot with enhanced stability and elastic energy return5 Mar 2026US 2026/0060819 A1Ossur Iceland Ehf
Most cited
By later US patents
- Shoe and foot prosthesis with bending beam spring structures186US 6,029,374 A2000
- Shoe and foot prosthesis with bending beam spring structures168US 5,701,686 A1997
- Prosthetic foot with reinforcing member150US 5,944,760 ARoland J. Christensen Family Limited Partnership · 1999
- Split foot prosthesis145US 5,181,933 A1993
- Low profile active shock module prosthesis133US 6,969,408 B2Ossur Engineering, Inc. · 2005