|
| US4166631 | 19 Oct 1977 | 4 Sep 1979 | | Sports wheelchair |
| US4310167 | 15 May 1980 | 12 Ene 1982 | The University of Virginia Alumni Patents Foundation | Center of gravity wheelchair with articulated chassis |
| US4545593 | 4 Nov 1983 | 8 Oct 1985 | | Enhanced mobility wheelchair |
| US4565385 | 16 Ene 1984 | 21 Ene 1986 | | Tiltable supporting wheelchair |
| US4613994 | 30 May 1985 | 30 Sep 1986 | | Collapsible portable enema seat |
| US4823900 | 9 Jun 1988 | 25 Abr 1989 | | Four-wheel drive wheel-chair with compound wheels |
| US4877260 | 30 Nov 1988 | 31 Oct 1989 | | Anti-tip wheelchair accessory |
| US4926952 | 30 Mar 1989 | 22 May 1990 | | Four-wheel drive wheelchair with compound wheels |
| US4927167 | 21 Mar 1988 | 22 May 1990 | | Ambulatory wheelstand |
| US4987912 | 31 May 1990 | 29 Ene 1991 | George P. Taylor | Walker assembly having stabilizer means |
| US5137295 | 28 Feb 1991 | 11 Ago 1992 | | Wheelchair with anti-tip assembly |
| US5181733 | 13 Dic 1991 | 26 Ene 1993 | | Anti-tip device for wheelchair |
| US5222567 | 26 Abr 1991 | 29 Jun 1993 | Genus Inc. | Power assist device for a wheelchair |
| US5490715 | 21 Jun 1993 | 13 Feb 1996 | | Arrangement in a chair |
| US5865457 | 14 Jul 1997 | 2 Feb 1999 | La-Z-Boy Incorporated | Wheeled health care chair |
| US5964473 | 16 Jul 1996 | 12 Oct 1999 | Degonda-Rehab S.A. | Wheelchair for transporting or assisting the displacement of at least one user, particularly for handicapped person |
| US6047979 | 3 Abr 1998 | 11 Abr 2000 | Geer Products Ltd. | Wheelchair anti-tipping device |
| US6062600 | 14 Jul 1997 | 16 May 2000 | Deka Products Limited Partnership | Anti-tipping mechanism |
| US6099021 | 23 Mar 1998 | 8 Ago 2000 | | Accessory for supporting a wheelchair in a stable reclined position |
| US6206472 | 27 May 1999 | 27 Mar 2001 | | Two position reclinable wooden chair |
| US6357793 | 29 Oct 1999 | 19 Mar 2002 | Sunrise Medical HHG Inc. | Anti-tip wheel |
| US6406039 | 22 Oct 2001 | 18 Jun 2002 | | Three-wheel roller skate |
| US6530598 | 29 Abr 1999 | 11 Mar 2003 | | Anti-tip devices for wheeled conveyances including wheelchairs and method related thereto |
| US6533306 | 18 Ene 2001 | 18 Mar 2003 | Pride Mobility Products Corporation | Adjustable height anti-tip wheels for a power wheelchair |
| US6554086 | 27 Oct 2000 | 29 Abr 2003 | Invacare Corporation | Obstacle traversing wheelchair |
| US6601863 | 2 Jul 1999 | 5 Ago 2003 | Invacare Corporation | Mid-wheel drive wheelchair with rigid front wheel anti-tip stabilizer |
| US6736417 | 10 May 1996 | 18 May 2004 | | Mountain chair apparatus and method for transporting a handicapped person over mountainous terrain |
| US6776430 | 9 Sep 2002 | 17 Ago 2004 | Pride Mobility Products Corporation | Stabilizing system for a reclinable wheelchair |
| US6851711 | 18 Ago 2003 | 8 Feb 2005 | Invacare Corporation | Vehicle having an anti-dive/lockout mechanism |
| US6923278 | 6 May 2002 | 2 Ago 2005 | Pride Mobility Products Corporation | Adjustable anti-tip wheels for power wheelchair |
| US6923280 | 17 Mar 2003 | 2 Ago 2005 | Invacare Corporation | Obstacle traversing wheelchair |
| US6935448 | 17 Mar 2003 | 30 Ago 2005 | Invacare Corporation | Obstacle traversing wheelchair |
| US6938923 | 30 Abr 2002 | 6 Sep 2005 | Pride Mobility Products Corporation | Power wheelchair |
| US7040429 | 10 Oct 2001 | 9 May 2006 | Invacare Corporation | Wheelchair suspension |
| US7055634 | 22 Ene 2004 | 6 Jun 2006 | Invacare Corporation | Wheelchair suspension |
| US7066290 | 19 Oct 2001 | 27 Jun 2006 | Invacare Corp. | Wheelchair suspension having pivotal motor mount |
| US7083195 | 27 Oct 2003 | 1 Ago 2006 | Invacare Corporation | Suspension with releasable locking system |
| US7219755 | 3 Jun 2005 | 22 May 2007 | Invacre Corp. | Obstacle traversing wheelchair |
| US7219924 | 2 Jul 2003 | 22 May 2007 | Pride Mobility Products Corporation | Rear wheel drive power wheelchair with ground-contacting anti-tip wheels |
| US7232008 | 17 Sep 2004 | 19 Jun 2007 | Pride Mobility Products Corporation | Active anti-tip wheels for power wheelchair |
| US7293801 | 10 Mar 2005 | 13 Nov 2007 | Invacare Corporation | Self-stabilizing suspension for wheeled vehicles |
| US7344155 | 27 Jul 2005 | 18 Mar 2008 | Pride Mobility Products Corporation | Adjustable anti-tip wheels for power wheelchair |
| US7374002 | 26 Jun 2006 | 20 May 2008 | Invacare Corporation | Wheelchair suspension |
| US7472767 | 8 May 2006 | 6 Ene 2009 | Invacare Corporation | Wheelchair suspension |
| US7597163 | 21 Jul 2006 | 6 Oct 2009 | Invacare Corporation | Obstacle traversing wheelchair |
| US8172015 | 9 Dic 2008 | 8 May 2012 | Invacare Corporation | Wheelchair suspension |
| US8172016 | 29 Sep 2009 | 8 May 2012 | Invacare Corporation | Obstacle traversing wheelchair |
| US8186695 | 27 Oct 2005 | 29 May 2012 | R82 A/S | Comfort wheelchair |