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For the Inventor, By the Inventor

Berkeley, CA, United States of America

Plexxikon Inc.

Calculating rank
USPTO Granted Patents = 107

% Expired Patents = 6.5



Trademarks = 2

Forward Citations = 3,857

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79 inventors (with patents filed for the assignee):

goldMedal Prabha N Ibrahim (92 out of 134 patents)

silverMedal Wayne Spevak (50 out of 54 patents)

bronzeMedal Jiazhong Zhang (49 out of 53 patents)

4.  Chao Zhang (44 out of 47 patents)

5.  Guoxian Wu (31 out of 44 patents)

6.  Jack Lin (28 out of 28 patents)

7.  Dean R Artis (27 out of 40 patents)

8.  Songyuan Shi (26 out of 35 patents)

9.  Hanna Cho (24 out of 24 patents)

10.  Marika Nespi (23 out of 23 patents)

11.  Ryan Bremer (21 out of 21 patents)

12.  Ying Zhang (18 out of 101 patents)

13.  Todd Ewing (11 out of 23 patents)

14.  Gary Conard Visor (11 out of 12 patents)

15.  John Buell (10 out of 15 patents)


Core Competencies:
Kinase Modulation
Heterocyclic Compounds
IDO Modulation
TDO Modulation
CD73 Modulation
CDK8 Modulation
Bromodomain Inhibitors
c-fms Activity
c-kit Activity
PDE4B Inhibitors
PPAR Active Compounds
ZAP-70 Compounds

107 patents:

1. 12509444 - Compounds and methods for CD73 modulation and indications therefor (2025-12-30),
2. 12435086 - Synthesis of heterocyclic compounds (2025-10-07),
3. 12076322 - Compounds and methods for kinase modulation, and indications therefor (2024-09-03),
4. 11739088 - Synthesis of heterocyclic compounds (2023-08-29),
5. 11337976 - Compounds and methods for kinase modulation, and indications therefor (2022-05-24),
6. 11149011 - Compounds and methods for IDO and TDO modulation, and indications therefor (2021-10-19),
7. 11103505 - Formulations of a compound modulating kinases (2021-08-31),
8. 10961240 - Formulations of a compound modulating kinases (2021-03-30),
9. 10941142 - Formulations of a compound modulating kinases (2021-03-09),
10. 10899761 - Heterocyclic compounds and uses thereof (2021-01-26),
11. 10829484 - Compounds and methods for kinase modulation, and indications therefor (2020-11-10),
12. 10730876 - Synthesis of a compound that modulates kinases (2020-08-04),
13. 10717735 - Solid forms of a compound for modulating kinases (2020-07-21),
14. 10703757 - Compounds and methods for CDK8 modulation and indications therefor (2020-07-07),
15. 10647716 - Heterocyclic compounds and uses thereof (2020-05-12),
Company Overview
Plexxikon Inc., based in Berkeley, CA, specializes in the development of innovative therapies targeting kinase modulation. The company focuses on a range of core technology topics, including heterocyclic compounds and various modulation pathways such as IDO, TDO, CD73, and CDK8. Additionally, Plexxikon is engaged in the research of bromodomain inhibitors and c-fms activity, positioning itself at the forefront of therapeutic advancements in oncology and other disease areas. Its commitment to scientific excellence drives the discovery of novel treatment options.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 10 2026

Plexxikon Inc. USPTO Patent Assignee Logo
107 Patents

#5 in Berkeley, CA

#813 in California

#3,580 in US

#7,356 in the World

Berkeley, CA (US)
Berkeley, CA, United States of America

Plexxikon Inc.

Forward Citations = 3,857

79 inventors:

goldMedal Prabha N Ibrahim (92 out of 134 patents)

silverMedal Wayne Spevak (50 out of 54 patents)

bronzeMedal Jiazhong Zhang (49 out of 53 patents)

4.  Chao Zhang (44 out of 47 patents)

5.  Guoxian Wu (31 out of 44 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Plexxikon Inc.. Retrieved from https://idiyas.com/company/plexxikon

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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