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Seoul, South Korea

Dongbu Hannong Chemical Co., Ltd.

USPTO Granted Patents = 12

Forward Citations = 72

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58 inventors (with patents filed for the assignee):

Hong Seok Lim (5 out of 8 patents)

Sung-Eun Yoo (3 out of 18 patents)

Dong Wan Koo (3 out of 8 patents)

4. Jee Hee Suh (3 out of 14 patents)

5. Kyu Yang Yi (3 out of 17 patents)

6. Jae Chun Woo (3 out of 9 patents)

7. Sun Kyung Lee (3 out of 6 patents)

8. Byung Ho Lee (3 out of 12 patents)

9. Sun-Ok Kim (3 out of 3 patents)

10. Hae Sung Chang (3 out of 7 patents)

11. Young Kwan Ko (3 out of 11 patents)

12. Jae Wook Ryu (3 out of 20 patents)

13. Dae Whang Kim (3 out of 7 patents)

14. Nak Jeong Kim (2 out of 8 patents)

15. Sun Kyung Hwang (2 out of 5 patents)

12 patents: Sort by Forward Citations

1. 7456304 - Method for improving conversion rate of oil soluble unsaturated lipids into water-soluble lipids (2008-11-25),

2. 7414068 - Benzopyran derivatives substituted with secondary amines including tetrazole, method for the preparation thereof and pharmaceutical compositions containing them (2008-08-19),

3. 7309793 - Benzopyran derivatives substituted with a benzimidazole derivative, pharmaceutically acceptable salts therof, their preparations and pharmaceutical compositions containing them (2007-12-18),

4. 6947144 - vivo monitoring method of transgenic plants and system using the same (2005-09-20),

5. 6600048 - Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds (2003-07-29),

6. 6489268 - Highly selective herbicidal phenoxypropionic acid alkoxycarbonyl anilid compounds and method of preparing the same (2002-12-03),

7. 6486098 - Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds (2002-11-26),

8. 6469209 - Acrylate-type fungicide (2002-10-22),

9. 6413983 - Benzopyranyl heterocycle derivatives, process for preparation thereof, and pharmaceutical compositions containing them (2002-07-02),

10. 6323238 - Benzopyranyl guanidine derivatives, process for preparation thereof, and pharmaceutical compositions containing them (2001-11-27),

11. 6051737 - Aryl benzoyl urea derivative and pesticidal composition comprising the (2000-04-18),

12. 6022882 - 2-chloro-3, 5-bis(trifluoromethyl)phenyl benzoyl urea derivative and (2000-02-08),

Dongbu Hannong Chemical Co., Ltd. is a leading chemical company in South Korea, specializing in the development and production of various chemical products. With a strong focus on innovation and sustainability, the company is committed to providing high-quality solutions for a wide range of industries.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

12 Patents

#291 in Seoul

#894 in South Korea

#46,665 in the World

Seoul, South Korea

Dongbu Hannong Chemical Co., Ltd.

Forward Citations = 72

58 inventors:

Hong Seok Lim (5 out of 8 patents)

Sung-Eun Yoo (3 out of 18 patents)

Dong Wan Koo (3 out of 8 patents)

4. Jee Hee Suh (3 out of 14 patents)

5. Kyu Yang Yi (3 out of 17 patents)

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