Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David B. Knowles — 63 Patents

Comcast: 27 patents #135 of 4,447Top 4%
TOTransitions Optical: 25 patents #3 of 143Top 3%
UCUniversity Of Southern California: 5 patents #144 of 1,826Top 8%
PIPpg Industries: 4 patents #280 of 1,216Top 25%
Johnson & Johnson: 4 patents #2,234 of 7,810Top 30%
POPpg Industries Ohio: 2 patents #525 of 1,316Top 40%
Vandergrift, PA: #1 of 285 inventorsTop 1%
Pennsylvania: #432 of 74,527 inventorsTop 1%
Overall (All Time): #35,470 of 4,157,543Top 1%
63 Patents All Time
David B. Knowles has been granted 63 US patents while listed as an inventor at Comcast. The first was granted in 1991 and the most recent in September 2024. David B. Knowles ranks #35,470 of 4,157,543 US inventors in our database (top 0.85%). Patent records list David B. Knowles in Vandergrift, PA, US.

Issued Patents All Time

Showing 1–25 of 63 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12097521 Apparatus and method for precision coating of ophthalmic lenses with photochromic coatings Elizabeth A. Zezinka, Cathy A. Taylor, Michael Frank Haley, Brian Smyth, Anil Kumar +1 more 2024-09-24
11795331 Curable photochromic compositions Michael Frank Haley, Linda K. Anderson, Anthony Thomas Gestrich, Stephen G. Robinson, Feng Wang +1 more 2023-10-24
11525027 Curable photochromic composition including a segmented polymer Stephen G. Robinson, Anthony Thomas Gestrich, Michael Frank Haley, Cathy A. Taylor, Elizabeth A. Zezinka 2022-12-13
10978649 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2021-04-13 $19,239,000
10749121 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2020-08-18 $13,555,000
10403831 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2019-09-03 $20,249,000
10158090 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2018-12-18 $29,075,000
9893306 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2018-02-13 $85,503,000
9722193 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2017-08-01 $62,956,000
9548462 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2017-01-17 $13,320,000
9465234 Photochromic materials having extended pi-conjugated systems and compositions and articles including the same Anu Chopra, Jun Deng, Beon-Kyu Kim, Frank Molock, Victor A. Montes +3 more 2016-10-11 $160,293,000
9281483 Organic electroluminescent materials and devices Chun Lin, Peter Borden Mackenzie, Jui-Yi Tsai, Robert W. Walters, Scott Beers +2 more 2016-03-08 $25,249,000
9097916 Photochromic materials having extended pi-conjugated systems and compositions and articles including the same Anu Chopra, Jun Deng, Beon-Kyu Kim, Frank Molock, Victor A. Montes +3 more 2015-08-04 $64,594,000
9065063 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 2015-06-23 $7,520,000
9028728 Photochromic materials that include indeno-fused naphthopyrans Kevin E. Bancroft, Anu Chopra, Xiao-Man Dai, Beon-Kyu Kim, Jason R. Lewis +8 more 2015-05-12
8889864 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 2014-11-18 $13,120,000
8766529 Metal complexes of cyclometallated imidazo[1,2-ƒ]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 2014-07-01 $3,009,000
8741188 Ophthalmic devices comprising photochromic materials having extended pi-conjugated systems Anu Chopra, Jun Deng, Beon-Kyu Kim, Frank Molock, Victor A. Montes +3 more 2014-06-03 $68,910,000
8691988 Metal complexes of cyclometallated imidazo (1,2-f) phenanthridine (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 2014-04-08 $7,957,000
8603645 Stable and efficient electroluminescent materials Raymond Kwong, Bin Ma, William Ceyrolles 2013-12-10 $19,581,000
8547625 Photochromic optical articles prepared with reversible thermochromic materials Stephen D. Straight, Kevin J. Stewart, Forrest R. Blackburn 2013-10-01
8535577 Photochromic materials that include 6-amino substituted indeno-fused naphthopyrans Anu Chopra, Huayun Yu 2013-09-17
8449990 Electroluminescent efficiency Raymond Kwong, Bin Ma, Xiao Li, William Ceyrolles 2013-05-28 $19,120,000
8388872 Photochromic materials having extended pi-conjugated systems and compositions and articles including the same Anu Chopra, Jun Deng, Beon-Kyu Kim, Frank Molock, Victor A. Montes +3 more 2013-03-05
8277699 Photochromic materials that include 6-amino substituted indeno-fused naphthopyrans Anu Chopra, Huayun Yu 2012-10-02