|
| US4350336 | 14 Oct 1980 | 21 Sep 1982 | | Exercise treadmill shock-absorbing improvement |
| US4360197 | 30 Jun 1980 | 23 Nov 1982 | | Spring assembly for a tumbling board |
| US4529179 | 28 Jul 1983 | 16 Jul 1985 | Perfection Spring & Stamping Corp. | Internal nut for adjusting the tension of a coil spring |
| US4549325 | 9 Oct 1984 | 29 Oct 1985 | Perfection Spring & Stamping Corp. | Method of making internal nut for adjusting the tension of a coil spring |
| US4718913 | 27 May 1986 | 12 Ene 1988 | | Dual, ankle, springs prosthetic foot and ankle system |
| US5226634 | 31 Ago 1990 | 13 Jul 1993 | AMP Incorporated | Platform spring |
| US5542892 | 15 Ago 1994 | 6 Ago 1996 | Unisen, Inc. | Supporting chassis for a treadmill |
| US5839963 | 28 Ago 1997 | 24 Nov 1998 | ABC-Team Spielplatzgerate GmbH Thema-Federn GmbH & Co. KG | Play apparatus for children's playgrounds or the like |
| US6003521 | 30 Jul 1999 | 21 Dic 1999 | | Hair fastener |
| US7097593 | 11 Ago 2003 | 29 Ago 2006 | Nautilus, Inc. | Combination of treadmill and stair climbing machine |
| US7175567 | 21 May 2003 | 13 Feb 2007 | Gymnova SA | Gymnastics springboard with adjustable elasticity designed for training and competition |
| US7279011 | 11 Feb 2004 | 9 Oct 2007 | | Foot prosthesis having cushioned ankle |
| US7354456 | 14 Sep 2004 | 8 Abr 2008 | | Foot prosthesis having cushioned ankle |
| US7879110 | 1 Dic 2009 | 1 Feb 2011 | Ossur hf | Foot prosthesis having cushioned ankle |