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| US4526365 | 18 Mar 1983 | 2 Jul 1985 | | Exercising device suitable for physical therapy and the like |
| US4589216 | 16 May 1984 | 20 May 1986 | | Sole element |
| US4821431 | 10 May 1988 | 18 Apr 1989 | | Sandal with contained granular material to provide a pad for a person's foot |
| US4914837 | 3 Jan 1989 | 10 Apr 1990 | | Sandal with contained granular material to provide a pad for a person's foot |
| US4934073 | 13 Jul 1989 | 19 Jun 1990 | | Exercise-enhancing walking shoe |
| US4951938 | 15 Mar 1989 | 28 Aug 1990 | Pro Stretch, Inc. | Exercise shoe |
| US5197932 | 27 Jun 1991 | 30 Mar 1993 | Prostretch, Inc. | Ganged exercise shoes |
| US5222925 | 18 Sep 1992 | 29 Jun 1993 | | Device and method for wrist exercise |
| US5395294 | 18 Jan 1994 | 7 Mar 1995 | Tunturi, Inc. | Foot pad for stair climber exerciser |
| US5529550 | 17 Feb 1995 | 25 Jun 1996 | | Device for forearm, elbow, wrist, hand, finger and thumb exercise |
| US5692318 | 18 Oct 1996 | 2 Dec 1997 | | Golf shoe sole |
| US5702354 | 18 Sep 1995 | 30 Dec 1997 | Active Motion Systems, LLC | Toe joint mobilization apparatus |
| US5707322 | 29 Jul 1996 | 13 Jan 1998 | Concept II, Inc. | Exercise machine |
| US5713820 | 9 Oct 1996 | 3 Feb 1998 | | Equipment for carrying out anterior and posterior foot and lower limbs flexion exercises |
| US5743831 | 15 Jul 1996 | 28 Apr 1998 | | Apparatus and method for exercising the leg |
| US6042520 | 26 Feb 1998 | 28 Mar 2000 | | Device for stretching and increasing the flexibility of the foot |
| US6131315 | 15 Aug 1996 | 17 Oct 2000 | Nancy C. Frye | Footwear exercising device |
| US6231485 | 14 Apr 1999 | 15 May 2001 | Concept II, Inc. | Exercise machine |
| US6371892 | 25 Nov 1997 | 16 Apr 2002 | Concept II, Inc. | Exercise machine |
| US6421935 | 17 Nov 2000 | 23 Jul 2002 | | Rocking shoe |
| US6425843 | 8 Apr 1998 | 30 Jul 2002 | | Apparatus for stretching the calf muscles |
| US6561955 | 10 Jun 1999 | 13 May 2003 | Concept II, Inc. | Machine-assisted exercising |
| US6698050 | 13 Oct 2000 | 2 Mar 2004 | | Shoe and last |
| US7201708 | 21 Feb 2001 | 10 Apr 2007 | Concept II, Inc. | Machine-assisted exercising |
| US7278227 | 2 Jun 2004 | 9 Oct 2007 | | Conditioning shoe and method of use |
| US7856740 | 20 Jul 2007 | 28 Dec 2010 | Time Sport International | Sports shoe and tightening strap for such a shoe |
| USD315584 | 30 Mar 1988 | 19 Mar 1991 | | Sole for rocking exerciser or the like |
| USD367508 | 28 Feb 1994 | 27 Feb 1996 | Concept II, Inc. | Rowing machine |
| USD596246 | 20 May 2008 | 14 Jul 2009 | | Therapeutic foot exercise block |
