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Grelan Pharmaceutical Co., Ltd.

USPTO Granted Patents = 10

Forward Citations = 215

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35 inventors (with patents filed for the assignee):

Kazuo Kigasawa (4 out of 6 patents)

Tomoji Aotsuka (3 out of 17 patents)

Nagatoshi Wagatsuma (3 out of 4 patents)

4. Naoki Ashizawa (2 out of 2 patents)

5. Mineharu Hiiragi (2 out of 2 patents)

6. Kikuo Wakisaka (2 out of 2 patents)

7. Kikuo Nakazato (2 out of 2 patents)

8. Kazuo Watabe (1 out of 99 patents)

9. Osamu Koyama (1 out of 77 patents)

10. Hiroaki Shimizu (1 out of 14 patents)

11. Yasuaki Ogawa (1 out of 43 patents)

12. Kouki Ishitani (1 out of 5 patents)

13. Kentarou Kumazawa (1 out of 4 patents)

14. Hideo Kato (1 out of 1 patent)

15. Hideaki Ohtani (1 out of 3 patents)

10 patents: Sort by Forward Citations

1. 6642250 - 1,8-naphthyridin-2(1H)-one derivatives (2003-11-04),

2. 6136831 - Pyrazole derivatives and COX inhibitors containing them (2000-10-24),

3. 5872115 - 2-ureido-benzamide derivatives (1999-02-16),

4. 5700819 - 2-substituted benzothiazole derivatives and prophylactic and therapeutic (1997-12-23),

5. 4906669 - Isoprenoid derivatives and anti-ulcer agents containing the same (1990-03-06),

6. 4652581 - Tetrahydroindole derivative as medicament for cerebral apoplexy (1987-03-24),

7. 4572832 - Soft buccal (1986-02-25),

8. 4528372 - N-Phthalidyl-5-fluorouracils (1985-07-09),

9. 4500511 - Antiinflammatory and analgesic gel (1985-02-19),

10. 4166125 - 2-Oxo-phenylbutanoic acid derivatives (1979-08-28),

Grelan Pharmaceutical Co., Ltd. is a leading pharmaceutical company specializing in the research, development, and production of high-quality medicines. With a strong commitment to innovation and excellence, we strive to improve the health and well-being of people around the world. Our state-of-the-art facilities and dedicated team of professionals ensure that we deliver safe and effective products that meet the highest standards of quality and efficacy.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

10 Patents

#1,685 in Tokyo

#4,284 in Japan

#54,303 in the World

Grelan Pharmaceutical Co., Ltd.

Forward Citations = 215

35 inventors:

Kazuo Kigasawa (4 out of 6 patents)

Tomoji Aotsuka (3 out of 17 patents)

Nagatoshi Wagatsuma (3 out of 4 patents)

4. Naoki Ashizawa (2 out of 2 patents)

5. Mineharu Hiiragi (2 out of 2 patents)

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