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| US5586761 | 26 Ago 1994 | 24 Dic 1996 | | Golf swing training device |
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| US6749548 | 25 Sep 2002 | 15 Jun 2004 | BackProject Corporation | Restraint and exercise device |
| US6843730 | 12 Ago 2003 | 18 Ene 2005 | | Golf training apparatus |
| US7678028 | 14 Dic 2005 | 16 Mar 2010 | | Martial arts training device |
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| US7846080 | 11 Ene 2008 | 7 Dic 2010 | | Machine and method for head, neck and, shoulder stretching |
| US8235877 | 5 Mar 2010 | 7 Ago 2012 | | Apparatus and method of gravity-assisted spinal stretching |
