Inventor
RIEHL TILFORD F
US6 patents
Patents
6 patentsUS4917121AApr 17, 1990
Smoking article
BROWN & WILLIAMSON TOBACCO CORP97 citations95
US4646762AMar 3, 1987
Cigarette having a mouthpiece
BROWN & WILLIAMSON TOBACCO CORP38 citations91
US4580584AApr 8, 1986
Cigarette filter
BROWN & WILLIAMSON TOBACCO CORP31 citations89
US4898191AFeb 6, 1990
Smoking device
BROWN & WILLIAMSON TOBACCO CORP8 citations72
US4611607ASep 16, 1986
Cigarette filter
BROWN & WILLIAMSON TOBACCO CORP8 citations70
US4643206AFeb 17, 1987
Cigarette filter
BROWN & WILLIAMSON TOBACCO CORP4 citations59