Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Donn Wishka — 15 Patents

Pfizer: 8 patents #652 of 5,153Top 15%
PHPharmacia: 6 patents #162 of 1,582Top 15%
Kalamazoo, MI: #111 of 1,283 inventorsTop 9%
Michigan: #5,942 of 86,293 inventorsTop 7%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Donn Wishka has been granted 15 US patents while listed as an inventor at Pfizer. The first was granted in 1999 and the most recent in June 2022. Donn Wishka ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Donn Wishka in Kalamazoo, MI, US.

Patents per Year

Patents granted per year, 1999 to 2022Bar chart with a peak of 3 patents in 2000.peak 31999: 1 patents19992000: 3 patents20002003: 1 patents20032004: 1 patents20042005: 3 patents20052006: 2 patents20062007: 1 patents20072010: 1 patents20102022: 2 patents2022

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11365211 Stereoselective synthesis and process for the manufacturing of 2′-deoxynucleosides Lianhao Zhang, Baburao Vishnuvajjala, Joel Morris, Robert Bahde, Sergiy M. Denysenko +1 more 2022-06-21
11254662 2′-halogenated-4′-thio-2′-deoxy-5-azacytidine analogs and use thereof Joel Morris, Omar D. Lopez 2022-02-22
7820648 Pyrimidine derivatives for the treatment of abnormal cell growth Samit Kumar Bhattacharya, Michael Joseph Luzzio, Gonghua Pan, Arthur Douglas Brosius, Joel Arcari +3 more 2010-10-26 $292,723,000
7176198 1H-pyrazole and 1H-pyrrole-azabicyclic compounds for the treatment of disease David W. Piotrowski, Eric Jon Jacobsen, Brad Acker, Daniel Walker, Vincent Groppi 2007-02-13 $114,373,000
7067515 Quinuclidines-substituted-multi-cyclic-heteroaryls for the treatment of disease Steven Reitz, David W. Piotrowski, Vincent Groppi 2006-06-27 $116,377,000
7001900 Azabicyclic compounds for the treatment of disease Eric Jon Jacobsen, Jason K. Myers, Daniel Walker, Steven Reitz, David W. Piotrowski +2 more 2006-02-21 $334,287,000
6911543 Azabicyclic-substituted fused-heteroaryl compounds for the treatment of disease Daniel Walker, David W. Piotrowski, Eric Jon Jacobsen, Brad Acker, Steven Reitz 2005-06-28 $179,326,000
6858613 Fused bicyclic-N-bridged-heteroaromatic carboxamides for the treatment of disease Bruce N. Rogers, David W. Piotrowski, Daniel Walker, Eric Jon Jacobsen, Brad Acker +1 more 2005-02-22 $353,517,000
6849620 N-(azabicyclo moieties)-substituted hetero-bicyclic aromatic compounds for the treatment of disease Daniel Walker, Eric Jon Jacobsen, David W. Piotrowski, Brad Acker, Jeffrey Corbett +2 more 2005-02-01 $221,993,000
6828330 Quinuclidine-substituted hetero-bicyclic aromatic compounds for the treatment of disease Daniel Walker, David W. Piotrowski, Vincent Groppi 2004-12-07
6562816 Substituted-heteroaryl-7-aza[2.2.1]bicycloheptanes for the treatment of disease Jason K. Myers, Bruce N. Rogers, Eric Jon Jacobsen, David W. Piotrowski, Jeffrey Corbett +2 more 2003-05-13
6124306 Thioalkyl alpha substituted pyrimidine compounds Joel Morris, Wade J. Adams, Janice M. Friis 2000-09-26 $223,534,000
6069141 Substituted aminophenyl isoxazoline derivatives useful as antimicrobials Michael R. Barbachyn, Joel Morris, Gary J. Cleek, Richard C. Thomas 2000-05-30 $237,284,000
6043248 Alpha-substituted pyrimidine-thioalkyl and alkylether compounds as inhibitors of viral reverse transcriptase Richard A. Nugent, Stephen T. Schlachter, Michael J. Murphy, Joel Morris, Richard C. Thomas +2 more 2000-03-28 $140,537,000
5981537 Pyrimidine-thioalkyl and alkylether compounds Richard A. Nugent, Stephen T. Schlachter, Michael J. Murphy, Joel Morris, Richard C. Thomas +3 more 1999-11-09 $97,315,000