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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US39904395 Dec 19749 Nov 1976ESB IncorporatedProtective breathing apparatus and valve therefor
US462269619 Jul 198418 Nov 1986Under helmet hood for aircrew
US476499031 Dec 198623 Aug 1988Ventilated face shield
US496142024 Feb 19899 Oct 1990Industrie Pirelli S.p.A.
Minestero Della Difesa Direzione Generale A.M.A.T.
Gas mask for operation in contaminated areas
US498959820 Nov 19895 Feb 1991Minnesota Mining and Manufacturing CompanyNegative pressure full face respirator having a replaceable viewing window
US588603227 Jan 199823 Mar 1999Redox Pharmaceutical CorporationMethod of treating cyanide poisoning
US58955379 Oct 199720 Apr 1999Sonic welded gas mask and process
US656438430 Jul 200220 May 2003Combined helmet and compass
US680511730 Oct 200219 Oct 2004RIC Investments, LLCUniversal fitting headgear
USD33198822 Aug 199122 Dec 1992Mask