|
| US3955225 | 21 Oct 1974 | 11 May 1976 | Sybron Corporation | Upholstered article and method |
| US4152023 | 14 Jan 1977 | 1 May 1979 | Steelcase Inc. | Chairs and method for making same |
| US4853995 | 15 Sep 1982 | 8 Aug 1989 | Sears Manufacturing Company | Molded cushion article |
| US5288045 | 26 Jul 1993 | 22 Feb 1994 | Herman Miller, Inc. | Chair base |
| US5318346 | 30 Apr 1993 | 7 Jun 1994 | Steelcase Inc. | Chair with zero front rise control |
| US5540481 | 2 May 1994 | 30 Jul 1996 | Steelcase, Inc. | Chair with zero front rise control |
| US5630643 | 1 Jun 1993 | 20 May 1997 | | Upholstered chair with two-piece shell |
| US5662381 | 6 Jun 1995 | 2 Sep 1997 | Steelcase Inc. | Chair construction and method of assembly |
| US5746477 | 3 Feb 1997 | 5 May 1998 | O'Sullivan Industries, Inc. | Upholstery to furniture fastener system |
| US5842264 | 27 Aug 1997 | 1 Dec 1998 | Steelcase Inc. | Chair construction and method of assembly |
| US6220661 | 19 Apr 1999 | 24 Apr 2001 | Steelcase Development Inc. | Chair back and method of assembly |
| US6508509 | 21 Dec 2000 | 21 Jan 2003 | Steelcase Development Corporation | Back for seating unit and method of assembly |
| US7775589 | 15 Mar 2007 | 17 Aug 2010 | | Upholstery mounting system and mechanism |