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| US4333179 | 18 Jun 1980 | 8 Jun 1982 | | Protective guard for the throat area |
| US4736466 | 30 Mar 1987 | 12 Apr 1988 | | Protective face guard |
| US5206955 | 5 Jun 1992 | 4 May 1993 | | Protective face guard |
| US5267353 | 12 Apr 1993 | 7 Dec 1993 | | Face guard |
| US5517699 | 2 Jun 1995 | 21 May 1996 | | Devices for preventing cervical spine injuries in contact sports |
| US6012164 | 13 Jan 1998 | 11 Jan 2000 | Apex Sports, LLC | Protective face mask |
| US6976272 | 16 Feb 2004 | 20 Dec 2005 | I2 Innovative Ideas | Universal visual shield apparatus for use with a hockey helmet |
| US7849525 | 12 Apr 2007 | 14 Dec 2010 | | Apparatus for reducing brain and cervical spine injury due to rotational movement |
| USD258322 | 16 Oct 1978 | 24 Feb 1981 | | Throat protecting attachment for a baseball catcher's mask |
| USD258695 | 5 Sep 1978 | 31 Mar 1981 | | Throat protecting attachment for a baseball catcher's mask |
| USD423727 | 29 Dec 1997 | 25 Apr 2000 | Apex Sports, LLC | Protective face mask |