JZ

John D. Zupanovich

CA Calgon: 5 patents #26 of 151Top 20%
📍 Pittsburgh, PA: #1,616 of 7,570 inventorsTop 25%
🗺 Pennsylvania: #15,920 of 74,527 inventorsTop 25%
Overall (All Time): #1,052,369 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5747342 Methods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio in boiler systems operating with captive alkalinity 1998-05-05
4895703 Trihydroxybenzene boiler corrosion inhibitor compositions and method Lois J. Neil, Dennis J. Sepelak 1990-01-23
4681737 Stabilized sodium erythorbate boiler corrosion inhibitor compositions and methods Jerry L. Walker 1987-07-21
4561897 Aqueous stable magnesium hydroxide suspensions which are dispersible in oil John G. Myers 1985-12-31
4375526 Anionic polymers for reduction of viscosity of a magnesium hydroxide filter cake paste John G. Myers, Jerry L. Walker 1983-03-01