Inventor
KERR RALPH O
15 patents
⚠️ This page may combine multiple inventors who share the name “KERR RALPH O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DENKA CHEMICAL CORP
9 patentsUS4123388AOct 31, 1978
Catalyst and process for preparing maleic anhydride from C4 hydrocarbons
DENKA CHEMICAL CORP19 citations82
US4152339AMay 1, 1979
Process for preparing maleic anhydride from c4 hydrocarbons
DENKA CHEMICAL CORP8 citations73
US4152338AMay 1, 1979
Process of preparing anhydrides from alkanes
DENKA CHEMICAL CORP9 citations73
US4105586AAug 8, 1978
Oxidation catalysts and process for preparing anhydride from alkanes
DENKA CHEMICAL CORP10 citations73
US4071539AJan 31, 1978
Process for preparing maleic anhydride from C4 hydrocarbons
DENKA CHEMICAL CORP8 citations73
US4081460AMar 28, 1978
Process for the vapor phase oxidation of benzene to maleic anhydrides
DENKA CHEMICAL CORP7 citations65
US4202826AMay 13, 1980
Process for preparing anhydride from alkanes
DENKA CHEMICAL CORP5 citations62
US4167516ASep 11, 1979
Preparation of dicarboxylic anhydrides
DENKA CHEMICAL CORP4 citations62
US4097498AJun 27, 1978
Process for preparing maleic anhydride from C4 hydrocarbons
DENKA CHEMICAL CORP3 citations62
PETRO TEX CHEM CORP
6 patentsUS4016105AApr 5, 1977
Catalyst preparative method
PETRO TEX CHEM CORP50 citations92
US3980585ASep 14, 1976
Catalyst and process for preparing maleic anhydride from C4 hydrocarbons
PETRO TEX CHEM CORP40 citations92
US4018709AApr 19, 1977
Catalyst for preparing maleic anhydride from C4 hydrocarbons
PETRO TEX CHEM CORP23 citations82
US4056487ANov 1, 1977
Vanadium phosphorus oxygen oxidation catalysts useful for preparing anhydrides from alkanes
PETRO TEX CHEM CORP26 citations81
US4049574ASep 20, 1977
Catalyst and process for preparing maleic anhydride from C4 hydrocarbons
PETRO TEX CHEM CORP14 citations73
US4006168AFeb 1, 1977
Catalyst treatment
PETRO TEX CHEM CORP6 citations73