Inventor
LICHT RICHARD R
4 patents
Patents
4 patentsUS4433732AFeb 28, 1984
Cable tray protection system
MINNESOTA MINING & MFG85 citations94
US4273879AJun 16, 1981
Intumescent fire retardant composites
MINNESOTA MINING & MFG82 citations94
US4467577AAug 28, 1984
Intumescent fire barrier material laminated with restraining layer
MINNESOTA MINING & MFG58 citations93
US4364210ADec 21, 1982
Fire barrier device
MINNESOTA MINING & MFG83 citations92