|
| US4173372 | 11 Oct 1977 | 6 Nov 1979 | Gary Reynolds Harold Y. Tai | Dental chair |
| US4527829 | 24 May 1982 | 9 Jul 1985 | Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung | Foldable wheel chair, especially for invalids |
| US4586749 | 5 Ago 1983 | 6 May 1986 | Takara Company, New York, Inc. | Barber/beauty chair |
| US4621863 | 17 Ene 1986 | 11 Nov 1986 | Cleveland Chair Company | Reclining chair having a detachable leg rest |
| US4691964 | 30 Jun 1986 | 8 Sep 1987 | | Powered reclining chair |
| US4722566 | 28 Oct 1986 | 2 Feb 1988 | Castellini S.p.A. | Reclining chair frame with adjustable seat and back-rest, in particular for use in dentistry |
| US4786107 | 6 Nov 1986 | 22 Nov 1988 | | Lifting apparatus for a seating structure |
| US4850645 | 7 Sep 1988 | 25 Jul 1989 | | Lifting apparatus for a seating structure |
| US5230522 | 25 Jun 1991 | 27 Jul 1993 | | Apparatus for moving a wheelchair over stepped obstacles |
| US5447317 | 23 Jul 1993 | 5 Sep 1995 | | Method for moving a wheelchair over stepped obstacles |
| US5800016 | 10 Mar 1997 | 1 Sep 1998 | | Elevating chair |
| US5895093 | 29 Sep 1997 | 20 Abr 1999 | | Recliner lift chair with swivel base |
| US6142568 | 27 Jul 1998 | 7 Nov 2000 | Lyle Allred | Pivoting linkage elevating chair |
| US6155642 | 30 Jun 1999 | 5 Dic 2000 | Oohiro Works, Ltd. | Barber/beauty chair |
| US7290836 | 26 May 2004 | 6 Nov 2007 | A-dec, Inc. | Patient chair |
| US7413252 | 20 Mar 2006 | 19 Ago 2008 | Dura Global Technologies, Inc. | Motor vehicle seat lift assembly |
| US7669823 | 6 Feb 2007 | 2 Mar 2010 | Sears Manufacturing Co. | Swivel seat and suspension apparatus |
| US7677670 | 5 Nov 2007 | 16 Mar 2010 | A-dec, Inc. | Patient chair |
| US7766421 | 12 Dic 2007 | 3 Ago 2010 | L & P Property Management Company | Recliner lift chair with power lift and reclining units |
| US7784871 | 4 Dic 2008 | 31 Ago 2010 | | Occupational support system |
| US8025336 | 31 Oct 2008 | 27 Sep 2011 | Midmark Corporation | Dental chair |
| US8033613 | 26 Ene 2010 | 11 Oct 2011 | A-dec, Inc. | Patient chair |
| US8132518 | 11 May 2007 | 13 Mar 2012 | Siemens Medical Solutions USA, Inc. | Substantially linear vertical lift system |
| US8172326 | 14 Mar 2008 | 8 May 2012 | Lear Corporation | Pivot joint assembly for a vehicle seat |
| USD613534 | 3 Sep 2009 | 13 Abr 2010 | A-dec, Inc. | Portion of a chair back for dental patients |