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% Expired Patents = 100.0

EPO Patents = 3

Trademarks = 1

Forward Citations = 4

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12 inventors (with patents filed for the assignee):

Masaichi Yamamoto (4 out of 14 patents)

Haruhiko Machida (2 out of 16 patents)

Naoki Yamamoto (1 out of 43 patents)

4. Kiyoshi Kita (1 out of 20 patents)

5. Hiroyuki Saimoto (1 out of 5 patents)

6. Yoshisada Yabu (1 out of 2 patents)

7. Nobutaka Fujii (1 out of 19 patents)

8. Tomoyoshi Nozaki (1 out of 1 patent)

9. Takeshi Toru (1 out of 1 patent)

10. Norio Shibata (1 out of 1 patent)

11. Yoshihiro Shigemasa (1 out of 1 patent)

12. Tomoyoshi Hosokawa (1 out of 1 patent)

13. Masaharu Ito (52 patents)

14. Hirofumi Nakajima (33 patents)

5 patents: Sort by Forward Citations

1. 8076302 - Pyrimidine nucleoside derivatives and salts thereof (2011-12-13),

2. 7868206 - Trihalomethionine derivative and pharmaceutical product containing the same (2011-01-11),

3. 7622598 - Phenol derivatives and antitrypanosoma preventive/therapeutic agent comprising the same as active ingredient (2009-11-24),

4. 7618950 - Method for treatment and prevention of herpes zoster by topical application (2009-11-17),

5. 7495011 - Anti-coronavirus drug (2009-02-24),

Arigen Pharmaceuticals, Inc. is a leading biopharmaceutical company dedicated to developing innovative therapies for a range of diseases. With a focus on research and development, Arigen is committed to advancing medical science and improving patient outcomes. The company's portfolio includes cutting-edge treatments in areas such as oncology, immunology, and rare diseases. Arigen is driven by a passion for helping patients and making a positive impact on global health.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

5 Patents

#2,717 in Tokyo

#6,647 in Japan

Tokyo, Japan

Arigen Pharmaceuticals, Inc.