|
| US4042987 | 16 Apr 1976 | 23 Aug 1977 | Ronald J. P. Evans | Resilient support |
| US4070719 | 1 Sep 1976 | 31 Jan 1978 | The Dow Chemical Company | Cushioning element |
| US4092751 | 6 May 1976 | 6 Jun 1978 | The Goodyear Tire & Rubber Company | Contoured foam seat |
| US4451240 | 27 May 1981 | 29 May 1984 | Advanced Sports Corp. | Aquatic mat |
| US4634393 | 22 Feb 1985 | 6 Jan 1987 | Advanced Sports Corporation | Aquatic mat |
| US4955096 | 28 Jun 1989 | 11 Sep 1990 | Bio Clinic Corporation | Anatomically contoured convoluted foam pad |
| US5160785 | 9 Jul 1991 | 3 Nov 1992 | E. R. Carpenter Company, Inc. | Padding body |
| US5816661 | 12 Dec 1996 | 6 Oct 1998 | Toyota Jidosha Kabushiki Kaisha | Vehicle seat structure |
| US6286167 | 1 Jun 2000 | 11 Sep 2001 | Hill-Rom Services, Inc. | Mattress structure |
| US6442780 | 9 Mar 2000 | 3 Sep 2002 | KCI Licensing, Inc. | Mattress with semi-independent pressure relieving pillars |
| US6829799 | 4 Apr 2003 | 14 Dec 2004 | | Ischial tuberosity pressure relief cushion |
| US6839929 | 10 Jan 2002 | 11 Jan 2005 | Hill-Rom Services, Inc. | Self-sealing mattress structure |
| US6874185 | 6 Jun 2000 | 5 Apr 2005 | KCI Licensing, Inc. | Mattress with semi-independent pressure relieving |
| US6969548 | 25 Aug 2000 | 29 Nov 2005 | | Impact absorbing composite |
| USD355322 | 3 Dec 1993 | 14 Feb 1995 | Span-America Medical Systems, Inc. | Tri-zone mattress overlay |
| USRE41346 | 13 Jul 2000 | 25 May 2010 | Stirling Mouldings Limited | Flexible material |
| USRE42689 | 13 Jul 2000 | 13 Sep 2011 | Stirling Mouldings Limited | Flexible material |
| USRE43441 | 13 Jul 2000 | 5 Jun 2012 | Stirling Mouldings Limited | Flexible material |
