Inventor
CLARK ROGER T
US13 patents
⚠️ This page may combine multiple inventors who share the name “CLARK ROGER T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PENNWALT CORP
5 patentsUS4255357AMar 10, 1981
Catalytic process for preparing ethyl amines
PENNWALT CORP20 citations80
US4454321AJun 12, 1984
Preparation of amines from olefins using certain transition metal catalysts
PENNWALT CORP7 citations72
US4400304AAug 23, 1983
Catalyst pellets with resin binder for decomposition of hypochlorite
PENNWALT CORP12 citations72
US4683090AJul 28, 1987
Purification of organosulfonyl halides
PENNWALT CORP1 citations51
US4827031AMay 2, 1989
Process for preparing amines from olefins with ammonium halide catalysts
PENNWALT CORP0 citations48
ATOCHEM NORTH AMERICA ELF
4 patentsUS5283369AFeb 1, 1994
Selective synthesis of mercaptans and catalyst therefor
ATOCHEM NORTH AMERICA ELF17 citations77
US5312992AMay 17, 1994
Process for removing sulfur from organic sulfides
ATOCHEM NORTH AMERICA ELF5 citations71
US5442123AAug 15, 1995
Process for selectively preparing organic trisulfides
ATOCHEM NORTH AMERICA ELF12 citations68
US5405820AApr 11, 1995
Process for the preparation of an alumina trihyorate catalyst
ATOCHEM NORTH AMERICA ELF1 citations47