|
| US4325363 | 12 Mar 1980 | 20 Apr 1982 | | Posture training therapeutic neck support |
| US4401111 | 28 Oct 1980 | 30 Aug 1983 | | Cervical spine collar |
| US4520801 | 8 Jul 1983 | 4 Jun 1985 | | Cervical collar |
| US4562833 | 19 Dec 1983 | 7 Jan 1986 | | Device for cervical/occipital support |
| US4576150 | 29 Feb 1984 | 18 Mar 1986 | | Orthopaedic support for the head and neck |
| US4708129 | 7 Jan 1986 | 24 Nov 1987 | | Cervical/occipital support |
| US5054475 | 18 Mar 1988 | 8 Oct 1991 | Charles Greiner and Company, Inc. | Emergency medical collar, collar/stabilizer, collar/stabilizer/head immobilizer |
| US5097824 | 7 Dec 1990 | 24 Mar 1992 | | Extended wear cervical collar |
| US5230698 | 8 Oct 1991 | 27 Jul 1993 | | Extended wear cervical collar |
| US5520619 | 22 Feb 1994 | 28 May 1996 | Ambu International A/S | Adjustable cervical collar |
| US5588957 | 15 Aug 1995 | 31 Dec 1996 | Ambu International A/S | Cervical collar |
| US5728054 | 24 May 1996 | 17 Mar 1998 | Ambu International A/S | Adjustable cervical collar |
| US5797863 | 29 Nov 1996 | 25 Aug 1998 | Ambu International A/S | Collapsible cervical collar |
| US5993403 | 13 Mar 1998 | 30 Nov 1999 | Ambu International A/S | Adjustable cervical collar |
| US6036664 | 7 Jun 1995 | 14 Mar 2000 | Ambu International A/S | Automatic adjustable cervical collar |
| US6090058 | 30 Dec 1997 | 18 Jul 2000 | Laerdal Medical Corporation | Multiple-size cervical collar |
| US6245033 | 29 Nov 1999 | 12 Jun 2001 | Ambu International A/S | Adjustable cervical collar |
| US6726643 | 13 Mar 2000 | 27 Apr 2004 | Ambu International A/S | Automatic adjustable cervical collar |
| US7090653 | 10 Sep 2004 | 15 Aug 2006 | CARSAR, LLC | Cervical collar with curve inducing tab |
| USD393718 | 23 Dec 1996 | 21 Apr 1998 | Laerdal Medical Corporation | Cervical collar |
| USRE36745 | 13 Jan 1999 | 20 Jun 2000 | Ambu Inc. | Extrication cervical collar with adjustable supports |
