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| US5863312 | 31 oct. 1997 | 26 janv. 1999 | | Non-entraining filter |
| US6070579 | 8 mars 1996 | 6 juin 2000 | 3M Innovative Properties Company | Elastomeric composite headband |
| US6123077 | 8 mars 1996 | 26 sept. 2000 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
| US6148817 | 23 janv. 1998 | 21 nov. 2000 | 3M Innovative Properties Company | Multi-part headband and respirator mask assembly and process for making same |
| US6394090 | 17 févr. 1999 | 28 mai 2002 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
| US6474336 | 20 mars 2000 | 5 nov. 2002 | | Mini pleated face mask |
| US6484722 | 12 avr. 2001 | 26 nov. 2002 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
| US6536434 | 14 août 2000 | 25 mars 2003 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
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| US6722366 | 25 mars 2003 | 20 avr. 2004 | 3M Innovative Properties Company | Method of making a flat-folded personal respiratory protection device |
| US6886563 | 11 mars 2004 | 3 mai 2005 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
| US7069930 | 28 févr. 2005 | 4 juil. 2006 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices and processes for preparing same |
| US7086401 | 10 févr. 2004 | 8 août 2006 | Megatech Scientific Pte Ltd. | Respiratory mask with inserted spacer |
| US8029723 | 17 juil. 2007 | 4 oct. 2011 | 3M Innovative Properties Company | Method for making shaped filtration articles |
| US8146594 | 17 déc. 2009 | 3 avr. 2012 | 3M Innovative Properties Company | Flat-folded personal respiratory protection devices |
| USD382052 | 9 juin 1995 | 5 août 1997 | | Face mask |
| USD423140 | 27 juil. 1998 | 18 avr. 2000 | Revlon Consumer Products Corporation | Pore cleansing strip |
| USD424688 | 7 nov. 1997 | 9 mai 2000 | 3M Innovative Properties Company | Respiratory protection mask |
| USD431647 | 6 sept. 1996 | 3 oct. 2000 | 3M Innovative Properties Company | Personal respiratory protection device having an exhalation valve |
| USD440302 | 3 avr. 2000 | 10 avr. 2001 | | Face mask |
| USD449377 | 9 mai 2000 | 16 oct. 2001 | 3M Innovative Properties Company | Tabs on a personal respiratory protection device |
| USD458364 | 5 mai 1999 | 4 juin 2002 | 3M Innovative Properties Company | Personal respiratory protection device that has left and right tabs |
| USD459471 | 5 mai 1999 | 25 juin 2002 | 3M Innovative Properties Company | Personal respiratory protection device that has a three panelled look |
| USD620104 | 25 nov. 1996 | 20 juil. 2010 | 3M Innovative Properties Company | Personal respiratory protection device |
