Inventor
RICHTER REINHARD H
US16 patents
⚠️ This page may combine multiple inventors who share the name “RICHTER REINHARD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UPJOHN CO
15 patentsUS4257995AMar 24, 1981
Process for preparing particle board and polyisocyanate-phosphorus compound release agent composition therefor
UPJOHN CO70 citations95
US4257996AMar 24, 1981
Process for preparing particle board and polyisocyanate-phosphorus compound release agent composition therefor
UPJOHN CO48 citations92
US4143014AMar 6, 1979
Novel compositions
UPJOHN CO20 citations81
US4138398AFeb 6, 1979
Bis-cyclic ureas
UPJOHN CO22 citations81
US4058563ANov 15, 1977
Novel schiff bases
UPJOHN CO10 citations73
US4026943AMay 31, 1977
Novel process
UPJOHN CO12 citations73
US4020104AApr 26, 1977
Process for isomerizing cis,cis- and cis,trans-isomers of di-(p-aminocyclohexyl)methane to the corresponding trans,trans-isomer
UPJOHN CO11 citations73
US4228053AOct 14, 1980
Concrete preparation with aqueous solution of product from polyether with polymethylene polyphenyl polyisocyanate
UPJOHN CO7 citations72
US4217436AAug 12, 1980
Polyurethane forming compositions
UPJOHN CO6 citations62
US4190599AFeb 26, 1980
Amide-containing diisocyanates and preparation thereof
UPJOHN CO3 citations62
US4154931AMay 15, 1979
Process for the preparation of cyclic ureas
UPJOHN CO5 citations62
US4051166ASep 27, 1977
Araliphatic diisocyanates
UPJOHN CO3 citations62
US3951922AApr 20, 1976
Process for preparing polyimides from derivatives of phthalic anhydride
UPJOHN CO3 citations62
US4522762AJun 11, 1985
Diisocyanate
UPJOHN CO5 citations61
US4339381AJul 13, 1982
1,3-Alkylene-diazetidine-2,4-diones
UPJOHN CO1 citations51