Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DL

David Zenan Li — 23 Patents

Comcast: 14 patents #293 of 4,447Top 7%
Pfizer: 7 patents #741 of 5,153Top 15%
Princeton, NJ: #185 of 2,186 inventorsTop 9%
New Jersey: #3,347 of 69,400 inventorsTop 5%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
David Zenan Li has been granted 23 US patents while listed as an inventor at Comcast. The first was granted in 2006 and the most recent in March 2025. David Zenan Li ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list David Zenan Li in Princeton, NJ, US.

Patents per Year

Patents granted per year, 2006 to 2025Bar chart with a peak of 4 patents in 2006.peak 42006: 4 patents20062007: 1 patents2008: 3 patents20082013: 1 patents2014: 1 patents20142016: 1 patents2017: 3 patents20172018: 2 patents2019: 2 patents20192020: 1 patents2021: 1 patents20212022: 1 patents2024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12262630 Organic electroluminescent materials and devices Pierre-Luc T. BOUDREAULT, Alexey Borisovich Dyatkin, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto +3 more 2025-03-25
11997918 Organic electroluminescent materials and devices Chuanjun Xia, Bin Ma, Bert Alleyne, Alan DeAngelis, James Fiordeliso +1 more 2024-05-28 $19,923,000
11374180 Organic electroluminescent materials and devices Chuanjun Xia, Bin Ma, Bert Alleyne, Alan DeAngelis, James Fiordeliso +1 more 2022-06-28 $15,318,000
10991896 Organic electroluminescent materials and devices Pierre-Luc T. BOUDREAULT, Alexey Borisovich Dyatkin, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto +3 more 2021-04-27 $28,626,000
10680189 Materials for organic light emitting diodes Chuanjun Xia, Bin Ma, Bert Alleyne, Alan DeAngelis, James Fiordeliso +1 more 2020-06-09 $14,914,000
10381580 Organic electroluminescent materials and devices Chuanjun Xia, Walter Yeager, James Fiordeliso, Bin Ma, Zeinab Elshenawy +4 more 2019-08-13 $38,838,000
10199581 Organic electroluminescent materials and devices Pierre-Luc T. BOUDREAULT, Alexey Borisovich Dyatkin, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto +3 more 2019-02-05 $68,616,000
10008677 Materials for organic light emitting diode Chuanjun Xia, Bin Ma, Bert Alleyne, Alan DeAngelis, James Fiordeliso +1 more 2018-06-26 $14,355,000
9947880 Organic electroluminescent materials and devices Chuanjun Xia, Walter Yeager, James Fiordeliso, Bin Ma, Zeinab Elshenawy +4 more 2018-04-17 $17,206,000
9755159 Organic materials for OLEDs Alexey Borisovich Dyatkin, Chuanjun Xia, Lichang Zeng, Vadim Adamovich 2017-09-05 $34,516,000
9735373 Organic electroluminescent materials and devices Alexey Borisovich Dyatkin, Chuanjun Xia 2017-08-15 $14,683,000
9590194 Organic electroluminescent materials and devices Pierre-Luc T. BOUDREAULT, Alexey Borisovich Dyatkin, Chuanjun Xia, Scott Joseph, Hitoshi Yamamoto +1 more 2017-03-07
9502656 Organic electroluminescent materials and devices Scott Joseph, Pierre-Luc T. BOUDREAULT, Alexey Borisovich Dyatkin, Chuanjun Xia, Hitoshi Yamamoto 2016-11-22 $9,013,000
8871361 Tetradentate platinum complexes Chuanjun Xia, Walter Yeager, James Fiordelisio, Bin Ma, Zeinab Elshenawy +4 more 2014-10-28 $16,528,000
8409729 Host materials for phosphorescent OLEDs Lichang Zeng, Alexey Borisovich Dyatkin, Gregg Kottas, Chuanjun Xia 2013-04-02 $17,874,000
7459478 Substituted dihydropyrano indole-3,4-dione derivatives as inhibitors of plasminogen activator inhibitor-1 (PAI-1) Hassan M. Elokdah 2008-12-02 $122,286,000
7411064 1-Heterocyclylalkyl-3-sulfonylazaindole or -azaindazole derivatives as 5-hydroxytryptamine-6 ligands Ronald Charles Bernotas, Steven Edward Lenicek, Hassan Mahmoud Elokdah 2008-08-12 $202,748,000
7368471 Substituted indole acid derivatives as inhibitors of plasminogen activator inhibitor-1 (PAI-1) Hassan M. Elokdah, Geraldine Ruth McFarlane, Lee Dalton Jennings, David LeRoy Crandall 2008-05-06 $118,510,000
7160918 Substituted indole oxo-acetyl amino acetic acid derivatives as inhibitors of plasminogen activator inhibitor (PAI-1) Hassan Mahmoud Elokdah, Geraldine Ruth McFarlane 2007-01-09
7101903 Substituted dihydropyrano indole-3,4-dione derivatives as inhibitiors of plasminogen activator inhibitor-1 (PAI-1) Hassan Mahmoud Elokdah 2006-09-05 $65,149,000
7074817 Substituted indole acid derivatives as inhibitors of plasminogen activator inhibitor-1 (PAI-1) Hassan Mahmoud Elokdah, Geraldine Ruth McFarlane, Lee Dalton Jennings, David LeRoy Crandall 2006-07-11 $53,609,000
7056943 Substituted indole oxo-acetyl amino acetic acid derivatives as inhibitors of plasminogen activator inhibitor-1 (PAI-1) Hassan Mahmoud Elokdah, Geraldine Ruth McFarlane 2006-06-06 $80,314,000
7057039 1-heterocyclylalkyl-3-sulfonylazaindole or -azaindazole derivatives as 5-hydroxytryptamine-6 ligands Ronald Charles Bernotas, Steven Edward Lenicek, Hassan Mahmoud Elokdah 2006-06-06 $80,314,000