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Seoul, South Korea

Samjin Pharmaceutical Co., Ltd.

USPTO Granted Patents = 13

% Expired Patents = 30.8

EPO Patents = 6

Forward Citations = 38

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44 inventors (with patents filed for the assignee):

Eui-Hwan Cho (9 out of 11 patents)

Sun-Gan Chung (8 out of 10 patents)

Ho-Seok Kwon (8 out of 10 patents)

4. Sun-Hwan Lee (7 out of 9 patents)

5. Dong-Wook Kang (6 out of 7 patents)

6. Jeong-Ho Joo (5 out of 6 patents)

7. Jae-Eung Lee (4 out of 4 patents)

8. Eui Hwan Cho (3 out of 4 patents)

9. Hee Jong Shin (3 out of 12 patents)

10. Jeong Ho Joo (2 out of 2 patents)

11. Young-Hee Lee (2 out of 3 patents)

12. Jae Woong Lee (2 out of 7 patents)

13. Sung Woo Lee (2 out of 12 patents)

14. Hyun Tae Kim (2 out of 25 patents)

15. Ki Seok Park (2 out of 2 patents)

13 patents: Sort by Forward Citations

1. 11712414 - Oral pharmaceutical composition for preventing or treating dry eye syndrome comprising rebamipide or a prodrug thereof (2023-08-01),

2. 11420963 - Rebamipide prodrugs, preparation method and use thereof (2022-08-23),

3. 10918725 - Ophthalmic composition comprising rebamipide and method for preparing the same (2021-02-16),

4. 10844062 - Pyridine derivative inhibiting RAF kinase and vascular endothelial growth factor receptor, method for preparing same, pharmaceutical composition containing same, and use thereof (2020-11-24),

5. 10301291 - Imidazole derivative having JNK inhibitory activity and use thereof (2019-05-28),

6. 7230105 - 9-aminoacridine derivatives and process for the preparation thereof (2007-06-12),

7. 6987114 - Antiviral pyrimidinedione derivatives and process for the preparation thereof (2006-01-17),

8. 6683184 - Piperazine derivatives and process for the preparation thereof (2004-01-27),

9. 6620936 - 9-aminoacridine derivatives and process for the preparation thereof (2003-09-16),

10. 6274732 - Process for the preparation of 1-[(cyclopent-3-en-1-yl)-methyl]-5-ethyl-6-(3,5-dimethylbenzoyl)-2,4-pyrimidinedione (2001-08-14),

11. 6136815 - Antiviral 2,4-pyrimidinedione derivatives and process for the (2000-10-24),

12. 6028195 - Piperazine derivatives and process for the preparation thereof (2000-02-22),

13. 5922727 - Antiviral substituted pyrimidinedione homocarbocyclic nucleoside (1999-07-13),

Company Overview

Samjin Pharmaceutical Co., Ltd. is a prominent player in the pharmaceutical industry, headquartered in Seoul, South Korea. The company specializes in the development and manufacturing of a diverse range of pharmaceutical products, including prescription medications and over-the-counter drugs. With a strong focus on research and innovation, Samjin Pharmaceutical is dedicated to advancing healthcare solutions, particularly in the fields of cardiology, oncology, and infectious diseases, contributing to improved patient outcomes both domestically and internationally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

13 Patents

#319 in Seoul

#878 in South Korea

#45,081 in the World

Seoul, South Korea

Samjin Pharmaceutical Co., Ltd.

Forward Citations = 38

44 inventors:

Eui-Hwan Cho (9 out of 11 patents)

Sun-Gan Chung (8 out of 10 patents)

Ho-Seok Kwon (8 out of 10 patents)

4. Sun-Hwan Lee (7 out of 9 patents)

5. Dong-Wook Kang (6 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Samjin Pharmaceutical Co., Ltd.. Retrieved from https://idiyas.com/company/samjin-pharmaceutical-company

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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