Inventor
LANGER ROGER L
US21 patents
⚠️ This page may combine multiple inventors who share the name “LANGER ROGER L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
11 patentsUS5250269AOct 5, 1993
Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers
MINNESOTA MINING & MFG229 citations99
US5869010AFeb 9, 1999
Intumescent sheet material
MINNESOTA MINING & MFG96 citations98
US5523059AJun 4, 1996
Intumescent sheet material with glass fibers
MINNESOTA MINING & MFG120 citations98
US4305992ADec 15, 1981
Intumescent sheet material
MINNESOTA MINING & MFG160 citations97
US5254410AOct 19, 1993
Partially dehydrated vermiculite flakes and method of making same
MINNESOTA MINING & MFG86 citations96
US4600634AJul 15, 1986
Flexible fibrous endothermic sheet material for fire protection
MINNESOTA MINING & MFG108 citations96
US4385135AMay 24, 1983
Intumescent sheet material containing low density fillers
MINNESOTA MINING & MFG119 citations95
US4048363ASep 13, 1977
Offset laminated intumescent mounting mat
MINNESOTA MINING & MFG94 citations95
US4273879AJun 16, 1981
Intumescent fire retardant composites
MINNESOTA MINING & MFG82 citations94
US5059637AOct 22, 1991
Endothermic fire protective material
MINNESOTA MINING & MFG25 citations92
US5175197ADec 29, 1992
Water-based intumescent fire barrier caulk
MINNESOTA MINING & MFG31 citations90
3M INNOVATIVE PROPERTIES CO
8 patentsUS6051193AApr 18, 2000
Multilayer intumescent sheet
3M INNOVATIVE PROPERTIES CO155 citations98
US6923942B1Aug 2, 2005
Compressible preform insulating liner
3M INNOVATIVE PROPERTIES CO77 citations97
US6458418B2Oct 1, 2002
Method of making multilayer sheets for firestops or mounting mats
3M INNOVATIVE PROPERTIES CO93 citations97
US6224835B1May 1, 2001
Multilayer intumescent sheet
3M INNOVATIVE PROPERTIES CO48 citations96
US6365267B1Apr 2, 2002
Multilayer intumescent sheet and pollution control device
3M INNOVATIVE PROPERTIES CO31 citations92
US6475340B1Nov 5, 2002
Solid phase extraction membrane
3M INNOVATIVE PROPERTIES CO15 citations77
US7758795B2Jul 20, 2010
Method of making a polluction control device and a self-supporting insulating end cone
3M INNOVATIVE PROPERTIES CO5 citations73
US8741200B2Jun 3, 2014
Method of making self-supporting insulating end cone liners and pollution control devices
3M INNOVATIVE PROPERTIES CO1 citations60