A61F 2/642
Polycentric joints, without longitudinal rotation
Official title: {Polycentric joints, without longitudinal rotation}
A61F2/642 (Polycentric joints, without longitudinal rotation) appears on 150 US grants and 141 published applications in this corpus.
Search patents in A61F- Granted patents
- 150
- Published applications
- 141
- Assignees
- 75
- Inventors
- 232
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 4 |
| 2004 | 6 | 4 |
| 2005 | 2 | 10 |
| 2006 | 9 | 6 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 4 | 4 |
| 2010 | 5 | 6 |
| 2011 | 4 | 5 |
| 2012 | 5 | 4 |
| 2013 | 5 | 12 |
| 2014 | 3 | 5 |
| 2015 | 5 | 5 |
| 2016 | 2 | 12 |
| 2017 | 8 | 5 |
| 2018 | 5 | 6 |
| 2019 | 5 | 8 |
| 2020 | 6 | 7 |
| 2021 | 6 | 11 |
| 2022 | 7 | 5 |
| 2023 | 3 | 5 |
| 2024 | 6 | 1 |
| 2025 | 3 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Prosthetic device11 Nov 2025US 12,465,501 B2Ottobock SE & Co. Kgaa
- Knee joint, posture calculator, method of controlling knee joint, and non-transitory computer-readable medium recording program for controlling knee joint27 May 2025US 12,310,863 B2Nabtesco Corporation
- Prosthetic device and method with compliant linking member and actuating linking member11 Mar 2025US 12,245,955 B2Ossur Iceland Ehf
- Variable transmission for assistive prosthesis device27 Aug 2024US 12,070,398 B2University of Utah Research Foundation
- Multi-articulated link knee joint23 Jul 2024US 12,042,406 B2Nabtesco Corporation
- Improved mechanical joints that include a compact, bypassable, single-spring or nested-spring wrap-spring clutch20 Aug 2026US 2026/0240666 A1
- Torque sensing and determination for a prosthetic joint actuation system30 Oct 2025US 2025/0332003 A1Ossur Iceland Ehf
- Prosthetic knee24 Jul 2025US 2025/0235331 A1College Park Industries, Inc.
- A Prosthetic Joint And Prosthetic Limb Comprising The Same17 Apr 2025US 2025/0120827 A1
- Knee joint for prosthetic leg2 Jan 2025US 2025/0000674 A1Seamless Transition LLC
Most cited
By later US patents
- Vacuum pump and shock absorber for artificial limb133US 6,645,253 B22003
- Knee joint mechanism for knee disarticulation prosthesis122US 5,746,774 AThe University of Toledo · 1998
- Ankle brace with floating pivot hinge118US 5,242,379 AExoFlex, Inc. · 1993
- Actuated prosthesis for amputees117US 7,736,394 B2Victhom Human Bionics Inc. · 2010
- Control device and system for controlling an actuated prosthesis114US 7,867,284 B2Victhom Human Bionics Inc. · 2011