A61F 2/748
Valve systems
Official title: {Valve systems}
A61F2/748 (Valve systems) appears on 244 US grants and 302 published applications in this corpus.
Search patents in A61F- Granted patents
- 244
- Published applications
- 302
- Assignees
- 108
- Inventors
- 424
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 1 |
| 2004 | 3 | 4 |
| 2005 | 5 | 10 |
| 2006 | 3 | 11 |
| 2007 | 1 | 12 |
| 2008 | 4 | 9 |
| 2009 | 2 | 7 |
| 2010 | 6 | 11 |
| 2011 | 11 | 12 |
| 2012 | 6 | 5 |
| 2013 | 8 | 14 |
| 2014 | 12 | 17 |
| 2015 | 17 | 19 |
| 2016 | 10 | 13 |
| 2017 | 13 | 13 |
| 2018 | 15 | 25 |
| 2019 | 15 | 19 |
| 2020 | 15 | 16 |
| 2021 | 14 | 17 |
| 2022 | 18 | 16 |
| 2023 | 14 | 22 |
| 2024 | 12 | 11 |
| 2025 | 11 | 13 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic prosthetic ankle23 Jun 2026US 12,661,242 B2College Park Industries, Inc.
- Orthopedic joint device23 Jun 2026US 12,661,244 B2Ottobock SE & Co. Kgaa
- Inflatable limb prosthesis21 Apr 2026US 12,605,262 B2
- Arthroplasty insert24 Feb 2026US 12,558,238 B2Zimmer, Inc.
- Prosthetic device, system and method for increasing vacuum attachment2 Dec 2025US RE50,679 E1Ossur Hf
- Dilatancy in an adjustable prosthesis30 Jul 2026US 2026/0215939 A1Rehabilitation Institute of Chicago
- Anatomically aligned prosthetic foot18 Jun 2026US 2026/0165854 A1Loma Linda University
- Breast prosthesis and method for manufacturing the same30 Apr 2026US 2026/0115017 A1The Hong Kong Polytechnic University
- Method and apparatus for enhancing operation of leg prosthesis19 Feb 2026US 2026/0047945 A1
- Prosthetic foot and ankle system with damper13 Nov 2025US 2025/0345188 A1Motion Control, Inc.
Most cited
By later US patents
- System for controlling artificial knee joint action in an above knee prosthesis315US 5,571,205 A1996
- Computer controlled hydraulic resistance device for a prosthesis and other apparatus206US 5,888,212 AMauch, Inc. · 1999
- System for controlling artificial knee joint action in an above knee prosthesis196US 5,383,939 A1995
- Adjustable prosthesis joint173US 5,957,981 AGramtec Innovation AB · 1999
- Computer controlled hydraulic resistance device for a prosthesis and other apparatus167US 6,113,642 AMauch, Inc. · 2000