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John E. Sorenson

WC W.R. Grace & Co.-Conn.: 2 patents #348 of 1,045Top 35%
📍 Reading, MA: #234 of 473 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,301,274 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5224774 Concrete additive product and method of use Stephen A. Valle, Robert C. Hegger, Walter W. Wydra 1993-07-06
5203629 Method for modifying concrete properties Stephen A. Valle, Robert C. Hegger, Walter W. Wydra 1993-04-20