|
| US3936551 | 30 jan 1974 | 3 feb 1976 | | Flexible wood floor covering |
| US3988187 | 28 apr 1975 | 26 okt 1976 | Atlantic Richfield Company | Method of laying floor tile |
| US4238257 | 18 sep 1978 | 9 dec 1980 | Societe Europenne des Produits Refractaires | Insulating slab of refractory fibres |
| US4406099 | 18 jun 1980 | 27 sep 1983 | | Unitized floor panel and method of laying the same |
| US4543765 | 14 jul 1983 | 1 okt 1985 | | Unitized floor panel and method of laying the same |
| US4731140 | 17 jun 1985 | 15 mar 1988 | | Wooden tile and a method of making the same |
| US5303526 | 21 jan 1993 | 19 apr 1994 | Robbins, Inc. | Resilient portable floor system |
| US5433052 | 2 mar 1992 | 18 jul 1995 | Robbins, Inc. | Kerfed hardwood floor system |
| US5566930 | 28 feb 1995 | 22 okt 1996 | Robbins, Inc. | Kerfed hardwood floor system |
| US5976689 | 14 nov 1996 | 2 nov 1999 | Permagrain Products, Inc. | Coated synthetic resin board tiles |
| US5985397 | 14 nov 1997 | 16 nov 1999 | | Coated synthetic resin board tiles |
| US6428871 | 5 maj 2000 | 6 aug 2002 | | Method of manufacturing decorative wood products from engineered wood products |
| US6568142 | 22 jan 2001 | 27 maj 2003 | Japan Blower Ind. Co., Ltd. | Bamboo floor plate for sound insulation |
| US6802159 | 31 maj 2002 | 12 okt 2004 | Snap Lock Industries, Inc. | Roll-up floor tile system and the method |
| US7114298 | 1 sep 2004 | 3 okt 2006 | Snap Lock Industries, Inc. | Roll-up floor tile system and method |
| US7634876 | 8 dec 2006 | 22 dec 2009 | | Modular floor locator apparatus |