|
| US4195629 | 31 juil. 1974 | 1 avr. 1980 | Halbrand, Inc. | Face mask |
| US4228798 | 1 mai 1979 | 21 oct. 1980 | | Suction receptacle with hygroscopic filter |
| US4300549 | 7 janv. 1980 | 17 nov. 1981 | Surgikos | Operating room face mask |
| US4319567 | 7 juil. 1980 | 16 mars 1982 | Moldex/Metric Products, Inc. | Disposable face mask |
| US4384577 | 3 avr. 1981 | 24 mai 1983 | Moldex/Metric Products, Inc. | Disposable face mask |
| US4550856 | 29 févr. 1984 | 5 nov. 1985 | | Face mask and dispenser assembly |
| US4616647 | 13 août 1984 | 14 oct. 1986 | Parmelee Industries, Inc. | Molded fiber disposable face mask having enhanced nose and chin filter-seals |
| US4641645 | 15 juil. 1985 | 10 févr. 1987 | New England Thermoplastics, Inc. | Face mask |
| US4643182 | 20 avr. 1983 | 17 févr. 1987 | Max Klein Frederick G. Crane, Jr. | Disposable protective mask |
| US4719911 | 20 oct. 1986 | 19 janv. 1988 | | Air filter mask with mouth retention means |
| US5553608 | 20 juil. 1994 | 10 sept. 1996 | Tecnol Medical Products, Inc. | Face mask with enhanced seal and method |
| US5656368 | 23 mai 1995 | 12 août 1997 | Minnesota Mining and Manufacturing Company | Fibrous filtration face mask having corrugated polymeric microfiber filter layer |
| US5699792 | 9 oct. 1996 | 23 déc. 1997 | Tecnol Medical Products, Inc. | Face mask with enhanced facial seal |
| US5704349 | 21 oct. 1994 | 6 janv. 1998 | Tecnol Medical Products, Inc. | Surgical face mask with darkened glare-reducing strip and visor |
| US5706804 | 31 janv. 1997 | 13 janv. 1998 | Minnesota Mining and Manufacturing Company | Liquid resistant face mask having surface energy reducing agent on an intermediate layer therein |
| US5724964 | 6 juil. 1995 | 10 mars 1998 | Tecnol Medical Products, Inc. | Disposable face mask with enhanced fluid barrier |
| US5753343 | 19 juil. 1993 | 19 mai 1998 | Minnesota Mining and Manufacturing Company | Corrugated nonwoven webs of polymeric microfiber |
| US5763078 | 17 déc. 1996 | 9 juin 1998 | Minnesota Mining and Manufacturing Company | Filter having corrugated nonwoven webs of polymeric microfiber |
| US5765556 | 17 juil. 1995 | 16 juin 1998 | Tecnol Medical Products, Inc. | Disposable aerosol mask with face shield |
| US5804295 | 28 févr. 1997 | 8 sept. 1998 | Minnesota Mining and Manufacturing Company | Fibrous filtration face mask having corrugated polymeric microfiber filter layer |
| US5863312 | 31 oct. 1997 | 26 janv. 1999 | | Non-entraining filter |
| US6041782 | 24 juin 1997 | 28 mars 2000 | 3M Innovative Properties Company | Respiratory mask having comfortable inner cover web |
| US6070265 | 3 avr. 1999 | 6 juin 2000 | | Nose warmer |
| US6093230 | 12 oct. 1998 | 25 juil. 2000 | Allegiance Corporation | Filter assembly comprising two filter elements separated by a hydrophobic foam |
| US6868984 | 24 sept. 2002 | 22 mars 2005 | Kimberly-Clark Worldwide, Inc. | Method of dispensing a face mask |
| US6923182 | 18 juil. 2002 | 2 août 2005 | 3M Innovative Properties Company | Crush resistant filtering face mask |
| US6945249 | 24 sept. 2002 | 20 sept. 2005 | Kimberly-Clark Worldwide, Inc. | Easy gripping face mask |
| US6948499 | 24 sept. 2002 | 27 sept. 2005 | Kimberly-Clark Worldwide, Inc. | Easy gripping face mask |
| US8006694 | 17 juin 2009 | 30 août 2011 | | Pop-open respiratory etiquette device |
| US8113201 | 30 juin 2008 | 14 févr. 2012 | Kimberly-Clark Worldwide, Inc. | Collapse resistant respirator |
| USD271432 | 24 juin 1981 | 15 nov. 1983 | Mine Safety Appliances Company | Dust filtering respirator |
| USD273145 | 14 déc. 1981 | 20 mars 1984 | American Hospital Supply Corporation | Face mask |
| USD277520 | 30 sept. 1982 | 12 févr. 1985 | | Face guard |
| USD366697 | 4 oct. 1993 | 30 janv. 1996 | Tecnol Medical Products, Inc. | Combined molded cone style face mask and visor |
| USD449377 | 9 mai 2000 | 16 oct. 2001 | 3M Innovative Properties Company | Tabs on a personal respiratory protection device |
| USD659820 | 18 sept. 2009 | 15 mai 2012 | 3M Innovative Properties Company | Tabs on a personal respiratory protection mask |