Inventor
WELGE FREDERICK T
10 patents
Patents
10 patentsUS4085134AApr 18, 1978
Amino-phosphonic-sulfonic acids
PETROLITE CORP66 citations95
US4818410AApr 4, 1989
Method of removing water soluble organics from oil process water
PETROLITE CORP53 citations94
US4187245AFeb 5, 1980
Hydroxypropylene-amino-phosphonic-sulfonic acids
PETROLITE CORP24 citations81
US4057554ANov 8, 1977
Quaternary ammonium salts of polyepihalohydrin
PETROLITE CORP22 citations81
US4229294AOct 21, 1980
Hydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting scale formation
PETROLITE CORP7 citations73
US4212734AJul 15, 1980
Inhibiting scale with amino-phosphonic-sulfonic acids
PETROLITE CORP8 citations73
US4076638AFeb 28, 1978
Oil-soluble aluminum compositions
PETROLITE CORP14 citations73
US4056479ANov 1, 1977
Magnesium carboxylate-sulfonate complexes
PETROLITE CORP11 citations73
US4104293AAug 1, 1978
Oil-soluble chromium compositions
PETROLITE CORP5 citations62
US4139718AFeb 13, 1979
Polyvinyl quaternaries
PETROLITE CORP1 citations51