|
| US4312088 | 28 avr. 1980 | 26 janv. 1982 | | Portable bed adjusting device for patients and the like |
| US4853990 | 3 févr. 1989 | 8 août 1989 | Mechanical Backrest, Inc. | Mechanical backlift |
| US4856129 | 28 déc. 1987 | 15 août 1989 | | Tiltable bed frame assembly |
| US5345631 | 5 mai 1993 | 13 sept. 1994 | Craft-Tex/Phase IV, Inc. | Bed elevator block |
| US5713091 | 15 nov. 1995 | 3 févr. 1998 | | Portable bed raiser |
| US6012185 | 10 sept. 1998 | 11 janv. 2000 | Rest Right, Inc. | Blocks for elevating bed legs |
| US6058532 | 30 mars 1998 | 9 mai 2000 | | Apparatus for elevating one end portion of a bed frame |
| US6493886 | 4 oct. 2000 | 17 déc. 2002 | | Mattress suspension system for a vehicle |
| US6772462 | 10 juin 2003 | 10 août 2004 | Claflin Enterprises, LLC | Tiltable bed |
| US6983979 | 31 juil. 2004 | 10 janv. 2006 | Happijac Company | System for moving beds |
| US6983980 | 11 août 2004 | 10 janv. 2006 | Happijac Company | System for moving a bed using an endless drive |
| US6988760 | 11 août 2004 | 24 janv. 2006 | Happijac Company | System for moving a bed using a chain |
| US7011527 | 27 déc. 2002 | 14 mars 2006 | | Negative gravity therapeutic methods |
| US7121612 | 19 oct. 2005 | 17 oct. 2006 | | Vehicle including multiple items that move vertically |
| US7121613 | 16 juin 2006 | 17 oct. 2006 | | Vehicle including multiple items that move vertically |
| US7198320 | 11 août 2004 | 3 avr. 2007 | Lippert Components, Inc. | System for moving a bed using a rack and gear |
| US7350850 | 19 oct. 2005 | 1 avr. 2008 | Lippert Components, Inc. | Bed that moves vertically and converts into a couch |
| US7384093 | 6 juin 2006 | 10 juin 2008 | Lippert Components, Inc. | System for lifting various objects in a vehicle |
| US7744142 | 9 juin 2008 | 29 juin 2010 | Lippert Components, Inc. | Strap bed lift |
| US7802840 | 30 mars 2007 | 28 sept. 2010 | | Tractor cab bed apparatus |
| US8038193 | 13 mai 2010 | 18 oct. 2011 | Lippert Components, Inc. | Strap bed lift |