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| US4233844 | 21 Dic 1978 | 18 Nov 1980 | Cardrei Corporation | Wheelchair ergometer |
| US4235437 | 3 Jul 1978 | 25 Nov 1980 | | Robotic exercise machine and method |
| US4311305 | 4 Dic 1979 | 19 Ene 1982 | | Chest and bust machine |
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| US4452447 | 12 Mar 1981 | 5 Jun 1984 | Isotechnologies, Inc. | Ankle exerciser |
| US4482152 | 13 Oct 1982 | 13 Nov 1984 | | Exercise equipment |
| US4501148 | 5 Ene 1982 | 26 Feb 1985 | | Manual muscle tester |
| US4540171 | 16 Jun 1982 | 10 Sep 1985 | | Variable resistance exercise apparatus |
| US4620703 | 12 Oct 1984 | 4 Nov 1986 | | Exercise apparatus |
| US4678184 | 17 Ene 1985 | 7 Jul 1987 | Merobel - Societe Anonyme Fracaise | Constant force exercise device |
| US4679786 | 25 Feb 1986 | 14 Jul 1987 | | Universal exercise machine |
| US4728098 | 11 Jul 1985 | 1 Mar 1988 | Game Time, Inc. | Rotating playground equipment assembly |
| US4743011 | 7 Jul 1986 | 10 May 1988 | | Exercise rowing machine |
| US4750738 | 26 Feb 1987 | 14 Jun 1988 | | Physical exercise apparatus for isokinetic and eccentric training |
| US4772013 | 9 Dic 1985 | 20 Sep 1988 | | Rowing exercise machine |
| US4807875 | 25 Jun 1987 | 28 Feb 1989 | | Exercise bench with safety apparatus |
| US4826154 | 12 Jul 1988 | 2 May 1989 | | Exercise device |
| US4828257 | 3 Feb 1988 | 9 May 1989 | Powercise International Corporation | Electronically controlled exercise system |
| US4836535 | 25 Ene 1988 | 6 Jun 1989 | | Upper body building machine |
| US4846460 | 13 May 1987 | 11 Jul 1989 | | Rowing machine |
| US4848152 | 4 May 1987 | 18 Jul 1989 | | Biofeedback lifting monitor |
| US4848737 | 1 Oct 1987 | 18 Jul 1989 | | Cardiovascular exercise ladder |
| US4912638 | 23 Dic 1988 | 27 Mar 1990 | | Biofeedback lifting monitor |
| US5035417 | 28 Jun 1989 | 30 Jul 1991 | | Exercise bicycle |
| US5104364 | 26 Dic 1990 | 14 Abr 1992 | | Method for exercising or testing rotary torso muscles |
| US5110118 | 18 Jun 1990 | 5 May 1992 | | Resistance mechanism for exercise equipment |
| US5112043 | 3 Oct 1990 | 12 May 1992 | | Physical therapy apparatus |
| US5125677 | 28 Ene 1991 | 30 Jun 1992 | | Human powered machine and conveyance with reciprocating pedals |
| US5131895 | 12 Feb 1990 | 21 Jul 1992 | | Exercise apparatus |
| US5338273 | 27 Ene 1993 | 16 Ago 1994 | Roadmaster Corporation | Quick change mechanism for synchronous/asynchronous exercise machine |
| US5397287 | 4 Ago 1993 | 14 Mar 1995 | | Muscle exercising device |
| US5499957 | 10 Ago 1994 | 19 Mar 1996 | Roadmaster Corporation | Quick change mechanism for synchronous/asynchronous exercise machine |
| US5503610 | 2 Jun 1995 | 2 Abr 1996 | Roadmaster Corporation | Quick change mechanism for synchronous/asynchronous exercise machine |
| US5529552 | 7 Jul 1994 | 25 Jun 1996 | | Exercise machine for training both muscle strength and cardiovascular endurance |
| US5755650 | 8 Nov 1995 | 26 May 1998 | | Home and office health and fitness chair |
| US6485397 | 24 Mar 2000 | 26 Nov 2002 | | Brake arrangement for magnetic or electric ergometer |
| US7060003 | 30 Jul 2004 | 13 Jun 2006 | | Horizontal rope pulling apparatus |
| US7833136 | 12 Ene 2008 | 16 Nov 2010 | | Rowing trainer |
