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Dave Knowles

TO Transitions Optical: 1 patents #94 of 143Top 70%
📍 Vandergrift, PA: #183 of 285 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #2,716,902 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10954397 Curable photochromic compositions Michael Frank Haley, Anthony Thomas Gestrich, Stephen G. Robinson, Feng Wang, Elizabeth A. Zezinka +1 more 2021-03-23