Inventor
GRANNIS VAUGHN B
US16 patents
⚠️ This page may combine multiple inventors who share the name “GRANNIS VAUGHN B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
8 patentsUS5325892AJul 5, 1994
Unidirectional fluid valve
MINNESOTA MINING & MFG216 citations99
US5924420AJul 20, 1999
Full face respirator mask having integral connectors disposed in lens area
MINNESOTA MINING & MFG249 citations98
USD378610SMar 25, 1997
Full face respirator
MINNESOTA MINING & MFG131 citations98
US5509436AApr 23, 1996
Unidirectional fluid valve
MINNESOTA MINING & MFG96 citations97
US4997034AMar 5, 1991
Heat exchanger
MINNESOTA MINING & MFG49 citations89
USD379160SMay 13, 1997
Buckle
MINNESOTA MINING & MFG14 citations74
USD409744SMay 11, 1999
Full face respirator lens
MINNESOTA MINING & MFG6 citations73
USD388872SJan 6, 1998
Full face respirator lens
MINNESOTA MINING & MFG12 citations73
3M INNOVATIVE PROPERTIES CO
8 patentsUS7117868B1Oct 10, 2006
Fibrous filtration face mask having a new unidirectional fluid valve
3M INNOVATIVE PROPERTIES CO75 citations98
US6854463B2Feb 15, 2005
Filtering face mask that has a new exhalation valve
3M INNOVATIVE PROPERTIES CO72 citations98
US6843248B2Jan 18, 2005
Filtering face mask that has a new exhalation valve
3M INNOVATIVE PROPERTIES CO80 citations98
US6216693B1Apr 17, 2001
Respirator having a compressible press fir filter element
3M INNOVATIVE PROPERTIES CO101 citations97
US7311104B2Dec 25, 2007
Method of making a filtering face mask that has an exhalation valve
3M INNOVATIVE PROPERTIES CO39 citations96
US7493900B1Feb 24, 2009
Fibrous filtration face mask having a new unidirectional fluid valve
3M INNOVATIVE PROPERTIES CO25 citations92
US7428903B1Sep 30, 2008
Fibrous filtration face mask having a new unidirectional fluid valve
3M INNOVATIVE PROPERTIES CO35 citations92
USD426298SJun 6, 2000
Full-face respirator lens
3M INNOVATIVE PROPERTIES CO16 citations83