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Seoul, South Korea

Dl Chemical Co., Ltd.

USPTO Granted Patents = 15

EPO Patents = 17

Trademarks = 2

Forward Citations = 12

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38 inventors (with patents filed for the assignee):

Byung Keel Sohn (5 out of 8 patents)

Hee Jun Lee (4 out of 4 patents)

Sung Ho Choi (4 out of 4 patents)

4. Myeong Seok Kim (4 out of 12 patents)

5. Min Sup Park (4 out of 12 patents)

6. Se Hyun Lee (4 out of 10 patents)

7. Seung Tack Yu (3 out of 5 patents)

8. Da Jung Kim (3 out of 6 patents)

9. Su Hyun Park (3 out of 6 patents)

10. Sung Woo Kang (3 out of 7 patents)

11. Jang Woo Lee (3 out of 7 patents)

12. Young Shin Jo (2 out of 4 patents)

13. Yong Jae Jun (2 out of 4 patents)

14. Hyeung Jin Lee (2 out of 4 patents)

15. Kyong Ju Na (2 out of 2 patents)

15 patents: Sort by Forward Citations

1. 12304982 - Polyolefin polymer and polyolefin polymerization system and method (2025-05-20),

2. 12049526 - Olefin polymerization method using antistatic agent for metallocene olefin polymerization process (2024-07-30),

3. 11891515 - Modified polyisobutylene polymer for rubber compounding and rubber composition including same (2024-02-06),

4. 11851555 - Polybutene derivative for rubber compounding and rubber composition including same (2023-12-26),

5. 11840588 - Polyolefin resin and preparation method thereof (2023-12-12),

6. 11718691 - Modified polyisobutylene polymer for rubber compounding and rubber composition comprising same (2023-08-08),

7. 11680160 - Polyolefin resin composition and production method of same (2023-06-20),

8. 11332553 - Catalyst composition for polymerizing polyolefin, method for producing polyolefin, and polyolefin resin (2022-05-17),

9. 11332549 - Method for producing multimodal polyolefin using multistage continuous polymerization process (2022-05-17),

10. 11261399 - Lubricant composition for gear oil (2022-03-01),

11. 11214638 - Method for producing highly reactive polybutene (2022-01-04),

12. 11214531 - Alphaolefin oligomer having uniform structure and method of preparing same (2022-01-04),

13. 11180589 - Metallocene catalyst compound for production of polyolefin resin or method of preparing same (2021-11-23),

14. 11180583 - Polyalphaolefin having uniform structure and method of preparing same (2021-11-23),

15. 11111456 - Lubricant composition for hydraulic oil (2021-09-07),

DL Chemical Co., Ltd. is a leading chemical manufacturer with a focus on providing high-quality products and services to various industries. With a strong emphasis on research and development, DL Chemical is committed to delivering innovative solutions that meet the changing needs of its customers. Established in [year], the company has built a reputation for reliability, efficiency, and expertise in the chemical sector. Through its dedication to excellence, DL Chemical continues to expand its reach and establish itself as a trusted partner in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#233 in Seoul

#733 in South Korea

#38,669 in the World

Seoul, South Korea

Dl Chemical Co., Ltd.

Forward Citations = 12

38 inventors:

Byung Keel Sohn (5 out of 8 patents)

Hee Jun Lee (4 out of 4 patents)

Sung Ho Choi (4 out of 4 patents)

4. Myeong Seok Kim (4 out of 12 patents)

5. Min Sup Park (4 out of 12 patents)

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