DK

David B. Knowles

TO Transitions Optical: 1 patents #8 of 18Top 45%
CO Comcast: 1 patents #98 of 291Top 35%
📍 Vandergrift, PA: #2 of 16 inventorsTop 15%
🗺 Pennsylvania: #754 of 6,061 inventorsTop 15%
Overall (2011): #105,265 of 364,097Top 30%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7915415 Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2011-03-29
7911676 Photochromic optical articles prepared with reversible thermochromic materials Stephen D. Straight, Kevin J. Stewart, Forrest R. Blackburn 2011-03-22