|
| US4177525 | 9 Nov 1977 | 11 Dec 1979 | Ohio Willow Wood Co., Inc. | Reinforced artificial foot and method of making |
| US4328594 | 13 Feb 1980 | 11 May 1982 | | Prosthetic foot |
| US4395783 | 16 Jul 1981 | 2 Aug 1983 | Vessa Limited | Method of making an artificial leg |
| US4442554 | 12 Feb 1982 | 17 Apr 1984 | | Biomechanical ankle device |
| US5004477 | 20 Oct 1989 | 2 Apr 1991 | Establissements Proteor | Prosthesis for leg amputation and a process for its manufacture |
| US5062859 | 11 Jun 1990 | 5 Nov 1991 | Otto Bock Orthopaedische Industrie Besitz- und Verwaltungs-Kommanditgesel lschaft | Prosthetic foot having Z shaped insert |
| US5156632 | 8 Nov 1991 | 20 Oct 1992 | Otto Bock Orthopaedische Industrie Besitz- und Verwaltungs-Kommanditgesel lschaft | Jointless prosthetic foot |
| US5258039 | 15 Nov 1991 | 2 Nov 1993 | The National University of Singapore | Energy storing composite prosthetic foot |
| US5458656 | 20 Dec 1993 | 17 Oct 1995 | Flex-Foot | Energy-storing prosthesis leg pylon vertical shock leg |
| US5486209 | 1 Jul 1994 | 23 Jan 1996 | | Foot prosthesis having auxiliary ankle construction |
| US5509938 | 4 Jan 1994 | 23 Apr 1996 | | Prosthetic foot incorporating adjustable bladder |
| US5514185 | 21 Jan 1994 | 7 May 1996 | | Split foot prosthesis |
| US5514186 | 8 Mar 1994 | 7 May 1996 | | Attachment construction for prosthesis |
| US5549714 | 12 Jan 1995 | 27 Aug 1996 | | Symes foot prosthesis |
| US5593457 | 22 Sep 1995 | 14 Jan 1997 | | Foot prosthesis having auxiliary ankle construction |
| US5728176 | 30 Oct 1995 | 17 Mar 1998 | Flex-Foot, Inc. | Attachment construction for prosthesis |
| US5766265 | 7 Jun 1995 | 16 Jun 1998 | | Prosthetic foot having curved integral support |
| US5899944 | 23 Apr 1996 | 4 May 1999 | | Prosthetic foot incorporating compressible members |
| US5976191 | 8 Oct 1996 | 2 Nov 1999 | | Foot prosthesis having curved forefoot |
| US5993488 | 13 May 1998 | 30 Nov 1999 | | Prosthesis with resilient ankle block |
| US6206934 | 21 Aug 1998 | 27 Mar 2001 | Flex-Foot, Inc. | Ankle block with spring inserts |
| US6280479 | 9 Apr 1999 | 28 Aug 2001 | Flex-Foot, Inc. | Foot prosthesis having cushioned ankle |
| US6406500 | 2 Nov 1999 | 18 Jun 2002 | | Foot prosthesis having curved forefoot |
| US6443995 | 22 Dec 2000 | 3 Sep 2002 | | Prosthetic foot |
| US6527811 | 16 Dec 1997 | 4 Mar 2003 | | Foot prosthesis with modular foot plate |
| US6743260 | 31 Jul 2001 | 1 Jun 2004 | | Prosthetic foot |
| US6899737 | 26 Oct 2000 | 31 May 2005 | | Foot prosthesis having cushioned ankle |
| US6936074 | 2 Mar 2004 | 30 Aug 2005 | | Prosthetic foot |
| US7063727 | 17 Dec 2002 | 20 Jun 2006 | Van L. Phillips
Össur hf | Foot prosthesis having cushioned ankle |
| US7108723 | 10 Jun 2004 | 19 Sep 2006 | | Prosthetic foot |
| US7279011 | 11 Feb 2004 | 9 Oct 2007 | | Foot prosthesis having cushioned ankle |
| US7354456 | 14 Sep 2004 | 8 Apr 2008 | | Foot prosthesis having cushioned ankle |
| US7503937 | 29 Jun 2007 | 17 Mar 2009 | Ossur HF | Prosthetic foot |
| US7771488 | 1 Oct 2008 | 10 Aug 2010 | Ossur HF | Prosthetic foot |
| US7879110 | 1 Dec 2009 | 1 Feb 2011 | Ossur hf | Foot prosthesis having cushioned ankle |
| US8177855 | 1 Oct 2008 | 15 May 2012 | Ossur hf | Prosthetic foot |
| USD647617 | 17 Mar 2010 | 25 Oct 2011 | Proteor | Envelope of a prosthesis foot |
