|
| US4076308 | 19 May 1977 | 28 Feb 1978 | Wilkhahn, Wilkening & Hahne | Chair |
| US4077596 | 18 Jun 1975 | 7 Mar 1978 | Bliss & Laughlin Industries, Incorporated | Low silhouette chair tilting control assembly |
| US4214726 | 6 Nov 1978 | 29 Jul 1980 | Steelcase, Inc. | Chair control |
| US4736984 | 31 Oct 1986 | 12 Apr 1988 | Super Sagless Corporation | Pivot assembly for reclining chair with rocking feature |
| US4889384 | 10 Jul 1988 | 26 Dec 1989 | Leggett & Platt, Incorporated | Knee-action chair control |
| US5026117 | 18 Jul 1989 | 25 Jun 1991 | Steelcase Inc. | Controller for seating and the like |
| US5042876 | 25 Jul 1989 | 27 Aug 1991 | Steelcase Inc. | Controller for seating and the like |
| US5080318 | 19 Jun 1990 | 14 Jan 1992 | Itoki Kosakusho Co., Ltd. | Tilting control assembly for chair |
| US5160184 | 6 Mar 1991 | 3 Nov 1992 | Steelcase, Inc. | Controller for seating and the like |
| US6176548 | 23 Oct 1998 | 23 Jan 2001 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
| US6209958 | 23 Oct 1998 | 3 Apr 2001 | Haworth, Inc. | Universal tilt mechanism for a chair |
| US6250715 | 20 Jan 1999 | 26 Jun 2001 | Herman Miller, Inc. | Chair |
| US6367876 | 11 Apr 2001 | 9 Apr 2002 | Herman Miller, Inc. | Chair |
| US6582019 | 15 Mar 2001 | 24 Jun 2003 | Herman Miller, Inc. | Tilt assembly for a chair |
| US6817668 | 16 May 2003 | 16 Nov 2004 | Steelcase Development Corporation | Seating unit with variable back stop and seat bias |
| US6869142 | 12 Sep 2002 | 22 Mar 2005 | Steelcase Development Corporation | Seating unit having motion control |
| US6880886 | 5 Jun 2003 | 19 Apr 2005 | Steelcase Development Corporation | Combined tension and back stop function for seating unit |
| US6957863 | 13 Sep 2004 | 25 Oct 2005 | Steelcase Development Corporation | Seating unit having motion control |
| US6991291 | 1 Feb 2005 | 31 Jan 2006 | Steelcase Development Corporation | Back construction for seating unit having spring bias |
| US7004543 | 24 Aug 2004 | 28 Feb 2006 | Herman Miller, Inc. | Chair |
| US7040709 | 1 Feb 2005 | 9 May 2006 | Steelcase Development Corporation | Back construction for seating unit having inverted U-shaped frame |
| US7040711 | 18 Dec 2003 | 9 May 2006 | Steelcase Development Corporation | Nonslip bearing arrangement |
| US7114777 | 21 Sep 2004 | 3 Oct 2006 | Steelcase Development Corporation | Chair having reclineable back and movable seat |
| US7131700 | 1 Feb 2005 | 7 Nov 2006 | Steelcase Development Corporation | Back construction for seating unit |
| US7165811 | 5 Jun 2003 | 23 Jan 2007 | Steelcase Development Corporation | Control mechanism for seating unit |
| US7234774 | 23 Sep 2005 | 26 Jun 2007 | Steelcase Development Corporation | Seating unit with novel flexible supports |
| US7237841 | 1 Feb 2005 | 3 Jul 2007 | Steelcase Development Corporation | Back construction with flexible lumbar |
| US7261368 | 27 Feb 2006 | 28 Aug 2007 | | Ergonomic chair |
| US7427105 | 18 Sep 2006 | 23 Sep 2008 | Steelcase Inc. | Back construction for seating unit |
| US7434880 | 22 Dec 2003 | 14 Oct 2008 | Varier Furniture AS | Mobile joint suitable for a sitting device |
| US7458637 | 10 Jun 2004 | 2 Dec 2008 | Steelcase Inc. | Back construction with flexible lumbar |
| US7540465 | 4 Oct 2005 | 2 Jun 2009 | | Shock absorbing motor mount for vibratory belt drive |
| US7753447 | 12 Oct 2007 | 13 Jul 2010 | L&P Property Management Company | Casual control tilt lockout |
| US7806478 | 4 Jan 2007 | 5 Oct 2010 | | Task chair with dual tilting capabilities |
| US7857390 | 22 Mar 2007 | 28 Dec 2010 | Herman Miller, Inc. | Piece of furniture |
| US7992937 | 17 Sep 2008 | 9 Aug 2011 | Herman Miller, Inc. | Body support structure |
| US8025334 | 2 Dec 2010 | 27 Sep 2011 | Herman Miller, Inc. | Piece of furniture |
| USD318588 | 24 Jun 1988 | 30 Jul 1991 | Leggett & Platt, Incorporated | Chair control |
