For the Inventor, By the Inventor

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Princeton, NJ, United States of America

Pharmasset, Inc.

USPTO Granted Patents = 19

% Expired Patents = 63.2

CIPO Patents = 3

EPO Patents = 3

Forward Citations = 947

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32 inventors (with patents filed for the assignee):

Junxing Shi (8 out of 23 patents)

Kyoichi A Watanabe (8 out of 10 patents)

Michael J Otto (6 out of 10 patents)

4. Raymond F Schinazi (4 out of 124 patents)

5. Peiyuan Wang (3 out of 49 patents)

6. Lieven Stuyver (3 out of 4 patents)

7. Jinfa Du (3 out of 34 patents)

8. Byoung-Kwon Chun (2 out of 28 patents)

9. Erik Alan Gustafson (2 out of 7 patents)

10. Joyce D Fingeroth (2 out of 3 patents)

11. Krystyna Lesiak (2 out of 7 patents)

12. Krzysztof W Pankiewicz (2 out of 2 patents)

13. Abel De La Rosa (1 out of 16 patents)

14. Pasquale N Confalone (1 out of 25 patents)

15. Michael Joseph Sofia (1 out of 34 patents)

19 patents: Sort by Forward Citations

1. 8735345 - Therapeutic composition (2014-05-27),

2. 8114997 - [object Object] (2012-02-14),

3. 8093380 - [object Object] (2012-01-10),

4. 7964580 - Nucleoside phosphoramidate prodrugs (2011-06-21),

5. 7919247 - Simultaneous quantification of nucleic acids in diseased cells (2011-04-05),

6. RE42015 - N4-acylcytosine-1,3-dioxolane nucleosides for treatment of viral infections (2010-12-27),

7. 7772208 - [object Object] (2010-08-10),

8. 7718790 - Kit for assessing mitochondrial toxicity (2010-05-18),

9. 7638502 - Treatment of EBV and KHSV infection and associated abnormal cellular proliferation (2009-12-29),

10. 7601820 - Preparation of alkyl-substituted 2-deoxy-2-fluoro-D-ribofuranosyl pyrimidines and purines and their derivatives (2009-10-13),

11. 7429572 - Modified fluorinated nucleoside analogues (2008-09-30),

12. 7211570 - Treatment of EBV and KHSV infection (2007-05-01),

13. 7094770 - 3'-or 2′-hydroxymethyl substituted nucleoside derivatives for treatment of hepatitis virus infections (2006-08-22),

14. 6949522 - β-2'- or 3′-halonucleosides (2005-09-27),

15. 6927291 - Method for the synthesis of 2',3′-dideoxy-2′,3′-didehydronucleosides (2005-08-09),

Pharmasset, Inc. is a biopharmaceutical company specializing in the discovery and development of antiviral therapies. Their mission is to advance the treatment of viral infections, including hepatitis C. Through innovative research and development, Pharmasset aims to develop safe and effective therapies that improve patients' lives worldwide.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

19 Patents

#50 in Princeton, NJ

#647 in New Jersey

#17,113 in US

#32,592 in the World

Princeton, NJ, United States of America

Pharmasset, Inc.

Forward Citations = 947

32 inventors:

Junxing Shi (8 out of 23 patents)

Kyoichi A Watanabe (8 out of 10 patents)

Michael J Otto (6 out of 10 patents)

4. Raymond F Schinazi (4 out of 124 patents)

5. Peiyuan Wang (3 out of 49 patents)

Please report any incorrect information to [email protected]

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