|
| US4062074 | 1 août 1975 | 13 déc. 1977 | Avion Australia Pty. Ltd. | Bed having a movable mattress supporting platform |
| US4097939 | 18 févr. 1976 | 4 juil. 1978 | Hill-Rom Company, Inc. | Hospital bed |
| US4101990 | 13 janv. 1977 | 25 juil. 1978 | Avion Australia Pty Ltd. | Adjustable height bed |
| US4175783 | 6 févr. 1978 | 27 nov. 1979 | | Stretcher |
| US4494259 | 25 nov. 1981 | 22 janv. 1985 | Simmons Universal Corporation | Adjustable bed |
| US5023967 | 20 avr. 1990 | 18 juin 1991 | American Life Support Technology | Patient support system |
| US5279010 | 3 avr. 1992 | 18 janv. 1994 | American Life Support Technology, Inc. | Patient care system |
| US5345629 | 8 avr. 1992 | 13 sept. 1994 | American Life Support Technology | Patient support system |
| US6076209 | 3 nov. 1998 | 20 juin 2000 | | Articulation mechanism for a medical bed |
| US6668408 | 26 août 2002 | 30 déc. 2003 | Hill-Rom Services, Inc. | Patient care system |
| US6789280 | 26 déc. 1996 | 14 sept. 2004 | | Articulated medical bed |
| US6941598 | 8 déc. 2003 | 13 sept. 2005 | Hill-Rom Services, Inc. | Patient care system |
| US7533429 | 2 mai 2008 | 19 mai 2009 | Hill-Rom Services, Inc. | Lift system for hospital bed |
| US7610637 | 12 juin 2008 | 3 nov. 2009 | Hill-Rom Services, Inc. | Lift system for hospital bed |
