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John J. Schwonke

W& W. R. Grace &: 1 patents #186 of 433Top 45%
Overall (All Time): #4,051,021 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4381255 Binderless zeolite extrudates and method of producing Richard J. Nozemack, Chang W. Chi 1983-04-26