Inventor · disambiguated record
Frederick T. Welge
Also filed as: WELGE FREDERICK T
10 granted patents·211 citations·filing 1974–1988
90Inventor score
Files withPETROLITE CORP10
Top patents by PatentIndex Score
10 records- 0196US4085134AAmino-phosphonic-sulfonic acidsPETROLITE CORP·Filed 1974·Granted Apr 18, 1978·66 cites·10 claims
- 0291US4187245AHydroxypropylene-amino-phosphonic-sulfonic acidsPETROLITE CORP·Filed 1978·Granted Feb 5, 1980·24 cites·11 claims
- 0384US4818410AMethod of removing water soluble organics from oil process waterPETROLITE CORP·Filed 1988·Granted Apr 4, 1989·53 cites·20 claims
- 0470US4057554AQuaternary ammonium salts of polyepihalohydrinPETROLITE CORP·Filed 1975·Granted Nov 8, 1977·22 cites·7 claims
- 0566US4076638AOil-soluble aluminum compositionsPETROLITE CORP·Filed 1975·Granted Feb 28, 1978·14 cites·17 claims
- 0664US4104293AOil-soluble chromium compositionsPETROLITE CORP·Filed 1976·Granted Aug 1, 1978·5 cites·15 claims
- 0759US4212734AInhibiting scale with amino-phosphonic-sulfonic acidsPETROLITE CORP·Filed 1977·Granted Jul 15, 1980·8 cites·11 claims
- 0852US4056479AMagnesium carboxylate-sulfonate complexesPETROLITE CORP·Filed 1976·Granted Nov 1, 1977·11 cites·2 claims
- 0942US4229294AHydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting scale formationPETROLITE CORP·Filed 1979·Granted Oct 21, 1980·7 cites·13 claims
- 1032US4139718APolyvinyl quaternariesPETROLITE CORP·Filed 1974·Granted Feb 13, 1979·1 cites·6 claims
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