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| US4090509 | 18 Nov 1976 | 23 May 1978 | | Vital emergency survival time (vest) |
| US4111342 | 19 Ago 1976 | 5 Sep 1978 | | Breathing apparatus |
| US4119097 | 3 Feb 1977 | 10 Oct 1978 | Applied Research Commodities Industries, Inc. | Emergency oxygen supply |
| US4195949 | 17 Jul 1978 | 1 Abr 1980 | J. Ray McDermott & Co., Inc. | Method and apparatus for emergency transfer and life support of saturation divers |
| US4253454 | 23 May 1979 | 3 Mar 1981 | Dragerwerk Aktiengesellschaft | Respirator package for carrying on a person |
| US4328798 | 8 Sep 1980 | 11 May 1982 | | Breathing apparatus with connector system for supplying emergency air to another individual |
| US4409978 | 1 Jun 1981 | 18 Oct 1983 | Portable Air Supply Systems, Corp. | Portable, self-contained breathing apparatus |
| US4510930 | 8 Mar 1983 | 16 Abr 1985 | The United States of America as represented by the United States Department of Energy | Breathable gas distribution apparatus |
| US4714077 | 24 Feb 1986 | 22 Dic 1987 | Mine Safety Appliances Company | Replenishable self contained breathing apparatus |
| US4744357 | 30 Oct 1986 | 17 May 1988 | Respirator Research Ltd. | Portable emergency breathing apparatus |
| US4750485 | 5 Dic 1986 | 14 Jun 1988 | Respirator Research Ltd. | Portable emergency breathing apparatus |
| US4788973 | 13 May 1986 | 6 Dic 1988 | John Kirchgeorg | Gas dispensing system and case therefor |
| US4794923 | 23 Oct 1986 | 3 Ene 1989 | Respirator research, ltd. | Portable emergency breathing apparatus |
| US5005568 | 7 Mar 1989 | 9 Abr 1991 | Hudson Respiratory Care Inc. | Isolation valve |
| US5343859 | 17 Jun 1993 | 6 Sep 1994 | Puritan-Bennett Corporation | Passenger oxygen mask having internal flow confirmation balloon |
| US5647345 | 7 Jun 1995 | 15 Jul 1997 | | Respiratory stimulator & methods of use |
| US6260501 | 17 Mar 2000 | 17 Jul 2001 | | Submersible apparatus for transporting compressed gas |
| USD295046 | 23 Ago 1985 | 5 Abr 1988 | Racal Safety Limited | Pump assembly for supplying air to a respirator, or the like |
