Inventor
TOMKINSON DONALD L
US8 patents
Patents
8 patentsUS4741401AMay 3, 1988
Method for treating subterranean formations
DOW CHEMICAL CO404 citations96
US4756844AJul 12, 1988
Controlled-release composition having a membrane comprising submicron particles
DOW CHEMICAL CO107 citations95
US5030399AJul 9, 1991
Method of in-mold sulfonation of molded plastic article
DOW CHEMICAL CO28 citations92
US4923753AMay 8, 1990
Controlled-release compositions for acids
DOW CHEMICAL CO44 citations92
US4915912AApr 10, 1990
Apparatus for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins
DOW CHEMICAL CO23 citations92
US4902493AFeb 20, 1990
Process for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins
DOW CHEMICAL CO25 citations89
US4046718ASep 6, 1977
Polymerization method employing tubular reactor
DOW CHEMICAL CO42 citations86
US4861250AAug 29, 1989
Mold sulfonation system
DOW CHEMICAL CO16 citations66