DK

Delbert G. Kish

TO Transitions Optical: 1 patents #94 of 143Top 70%
Overall (All Time): #3,684,327 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5753146 Photochromic naphthopyran compositions of neutral color Barry Van Gemert 1998-05-19