Dave Knowles

TOTransitions Optical: 1 patents #7 of 23Top 35%

Vandergrift, PA: #3 of 8 inventorsTop 40%

Pennsylvania: #2,483 of 7,685 inventorsTop 35%

Overall (2021): #483,229 of 548,734Top 90%

1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

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