Inventor
LEVIS JR WILLIAM W
US19 patents
⚠️ This page may combine multiple inventors who share the name “LEVIS JR WILLIAM W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF WYANDOTTE CORP
13 patentsUS4487853ADec 11, 1984
Low ethylene oxide/high primary hydroxyl content polyether-ester polyols and polyurethane foams based thereon
BASF WYANDOTTE CORP44 citations92
US4021385AMay 3, 1977
Polyurethane foams resistant to discoloration
BASF WYANDOTTE CORP38 citations92
US4562290ADec 31, 1985
Alkylene oxide adducts of vicinal toluenediamine
BASF WYANDOTTE CORP42 citations91
US4052345AOct 4, 1977
Process for the preparation of polyurethane foams
BASF WYANDOTTE CORP29 citations81
US4421871ADec 20, 1983
Propylene oxide adducts of toluenediamine
BASF WYANDOTTE CORP25 citations80
US4391728AJul 5, 1983
Propylene oxide adducts of toluenediamine
BASF WYANDOTTE CORP27 citations80
US4149987AApr 17, 1979
Process for preparing halogenated aromatic hydroxy ethers
BASF WYANDOTTE CORP6 citations72
US4228247AOct 14, 1980
Stabilized polyoxyalkylene polyether polyol
BASF WYANDOTTE CORP13 citations70
US4430247AFeb 7, 1984
Process for preparing an oxyalkylated product
BASF WYANDOTTE CORP2 citations62
US4097399AJun 27, 1978
Process for preparing an oxyalkylated product
BASF WYANDOTTE CORP1 citations62
US3957922AMay 18, 1976
Process for preparing an oxyalkylated product and reaction product thereof
BASF WYANDOTTE CORP2 citations62
US4517383AMay 14, 1985
Alkylene oxide adducts of aniline having reduced viscosity
BASF WYANDOTTE CORP3 citations61
US4105597AAug 8, 1978
Polyurethane foam from an oxyalkylated product
BASF WYANDOTTE CORP0 citations41
BASF CORP
6 patentsUS4849459AJul 18, 1989
Flame retardant polyurethane foams
BASF CORP29 citations92
US4745133AMay 17, 1988
Flame retardant polyurethane foams
BASF CORP34 citations90
US4637893AJan 20, 1987
Delayed co-initiation process for preparing polyol blends
BASF CORP2 citations62
US4762950AAug 9, 1988
Selective oxyalkylaton of N-(2-hydroxyalkyl)-aniline
BASF CORP3 citations61
USRE36358EOct 26, 1999
Flame retardant polyurethane foams
BASF CORP4 citations56
US4590225AMay 20, 1986
Polyurethane products based on alkylene oxide adducts of aniline having reduced viscosity
BASF CORP0 citations50