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| US4832017 | 27 Mar 1987 | 23 May 1989 | Dragerwerk Aktiengesellschaft | Breathing mask |
| US4998530 | 11 Oct 1989 | 12 Mar 1991 | | Resuscitation aid |
| US5095898 | 12 Feb 1991 | 17 Mar 1992 | Brunswick Bio-Medical Corporation | Resuscitation aid |
| US5165396 | 22 Ene 1992 | 24 Nov 1992 | Brunswick Biomedical Technologies, Inc. | Resuscitation aid |
| US5558089 | 27 Dic 1995 | 24 Sep 1996 | Minnesota Mining and Manufacturing Company | Respirator nose clip |
| USD267985 | 24 Sep 1980 | 15 Feb 1983 | Moldex/Metric Products, Inc. | Disposable face mask |
| USD383537 | 27 Sep 1995 | 9 Sep 1997 | Suomen Jonas Oy | Breathing mask |
| USD412573 | 20 Feb 1996 | 3 Ago 1999 | 3M Innovative Properties Company | Nose clip for a filtering face mask |
