|
| US4328594 | 13 Feb 1980 | 11 May 1982 | | Prosthetic foot |
| US4446580 | 9 Jun 1981 | 8 May 1984 | Keiai Orthopedic Appliance Co., Ltd. | Prosthetic foot structure |
| US5116384 | 31 Ago 1990 | 26 May 1992 | Syncor, Ltd. | Prosthetic foot |
| US5314499 | 4 Abr 1991 | 24 May 1994 | | Artificial limb including a shin, ankle and foot |
| US5443527 | 31 Mar 1993 | 22 Ago 1995 | | Prosthetic food and three-way ankle joint |
| US5458656 | 20 Dic 1993 | 17 Oct 1995 | Flex-Foot | Energy-storing prosthesis leg pylon vertical shock leg |
| US5482513 | 12 Oct 1993 | 9 Ene 1996 | | Ankle joint with dedicated transverse rotator |
| US5486209 | 1 Jul 1994 | 23 Ene 1996 | | Foot prosthesis having auxiliary ankle construction |
| US5509938 | 4 Ene 1994 | 23 Abr 1996 | | Prosthetic foot incorporating adjustable bladder |
| US5514185 | 21 Ene 1994 | 7 May 1996 | | Split foot prosthesis |
| US5514186 | 8 Mar 1994 | 7 May 1996 | | Attachment construction for prosthesis |
| US5545234 | 1 Nov 1994 | 13 Ago 1996 | | Lower extremity prosthetic device |
| US5549714 | 12 Ene 1995 | 27 Ago 1996 | | Symes foot prosthesis |
| US5571210 | 2 Dic 1994 | 5 Nov 1996 | Pro-Pel AB | Adjustable foot prosthesis |
| US5593457 | 22 Sep 1995 | 14 Ene 1997 | | Foot prosthesis having auxiliary ankle construction |
| US5728176 | 30 Oct 1995 | 17 Mar 1998 | Flex-Foot, Inc. | Attachment construction for prosthesis |
| US5800570 | 14 Mar 1996 | 1 Sep 1998 | | Lower extremity prosthetic device |
| US5976191 | 8 Oct 1996 | 2 Nov 1999 | | Foot prosthesis having curved forefoot |
| US6071313 | 22 May 1998 | 6 Jun 2000 | | Split foot prosthesis |
| US6406500 | 2 Nov 1999 | 18 Jun 2002 | | Foot prosthesis having curved forefoot |
| US6443995 | 22 Dic 2000 | 3 Sep 2002 | | Prosthetic foot |
| US6527811 | 16 Dic 1997 | 4 Mar 2003 | | Foot prosthesis with modular foot plate |
| US6743260 | 31 Jul 2001 | 1 Jun 2004 | | Prosthetic foot |
| US6811571 | 1 Jun 2000 | 2 Nov 2004 | Van L. Phillips
Ossur HF | Universal prosthesis with cushioned ankle |
| US6936074 | 2 Mar 2004 | 30 Ago 2005 | | Prosthetic foot |
| US7108723 | 10 Jun 2004 | 19 Sep 2006 | | Prosthetic foot |
| US7871443 | 28 Feb 2006 | 18 Ene 2011 | | Prosthetic foot with composite heel |
| US8118879 | 14 Mar 2008 | 21 Feb 2012 | | Prosthetic foot with flexible ankle portion |
