Inventor · disambiguated record
John D. Zupanovich
Also filed as: ZUPANOVICH JOHN D
5 granted patents·150 citations·filing 1981–1997
83Inventor score
Files withCALGON CORP5
Top patents by PatentIndex Score
5 records- 0186US4895703ATrihydroxybenzene boiler corrosion inhibitor compositions and methodCALGON CORP·Filed 1988·Granted Jan 23, 1990·44 cites·2 claims
- 0283US4375526AAnionic polymers for reduction of viscosity of a magnesium hydroxide filter cake pasteCALGON CORP·Filed 1981·Granted Mar 1, 1983·28 cites·1 claims
- 0378US4681737AStabilized sodium erythorbate boiler corrosion inhibitor compositions and methodsCALGON CORP·Filed 1985·Granted Jul 21, 1987·24 cites·9 claims
- 0474US5747342AMethods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio in boiler systems operating with captive alkalinityCALGON CORP·Filed 1997·Granted May 5, 1998·46 cites·8 claims
- 0555US4561897AAqueous stable magnesium hydroxide suspensions which are dispersible in oilCALGON CORP·Filed 1984·Granted Dec 31, 1985·8 cites·10 claims
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