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Seoul, South Korea

Lg Chemical Ltd.

USPTO Granted Patents = 83

% Expired Patents = 7.2

EPO Patents = 19

Trademarks = 10

Forward Citations = 762

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281 inventors (with patents filed for the assignee):

Jong Sung Koh (7 out of 19 patents)

Jay Hyok Chang (7 out of 9 patents)

Do Hyun Nam (7 out of 9 patents)

4. You Seung Shin (7 out of 7 patents)

5. Young Kwan Kim (7 out of 13 patents)

6. Chang Yong Hong (7 out of 7 patents)

7. Hoon Moo Choi (6 out of 136 patents)

8. Jae-Seung Oh (6 out of 20 patents)

9. Jong Hyun Kim (6 out of 18 patents)

10. Yi Na Jeong (6 out of 6 patents)

11. Bun-Yeoul Lee (5 out of 13 patents)

12. Seong Gu Ro (5 out of 7 patents)

13. Tae Hwan Kwak (5 out of 5 patents)

14. Hyun Il Lee (5 out of 5 patents)

15. Se Ho Kim (5 out of 13 patents)

Core Competencies:

Olefin Polymerization

Thermoplastic Resins

Polymer Surface Modification

Metallocene Catalyst

Lithium Secondary Battery

Fluorescent Substances

Cationic Surfactants

Antibody Composition

Polyhydroxyalkanoate

Deodorized Resin

Thrombin Inhibitors

Vaccine Formulation

83 patents: Sort by Forward Citations

1. 7283188 - Compensator comprising a positive and negative birefringent retardation film (2007-10-16),

2. 7169447 - Achromatic quarter wave film (2007-01-30),

3. 7041618 - Supported metallocene catalyst and olefin polymerization using the same (2006-05-09),

4. 6987173 - Process for the preparation of active somatotropin from inclusion bodies (2006-01-17),

5. 6937393 - Projection television screen (2005-08-30),

6. 6919408 - Thermoplastic transparent resin composition and method of manufacturing same (2005-07-19),

7. 6890634 - Retroreflective article (2005-05-10),

8. 6841093 - Method for manufacturing spherical blue fluorescent substance (2005-01-11),

9. 6809056 - Process for preparing polyolefin polymerization catalysts (2004-10-26),

10. 6761996 - Device for sealing lithium secondary battery electrolyte injecting hole (2004-07-13),

11. 6710098 - Methods for reforming polymer surface for improved wettability (2004-03-23),

12. 6696538 - Semiconductor interlayer dielectric material and a semiconductor device using the same (2004-02-24),

13. 6649382 - Methods of making polyhydroxyalkanoate using biosynthesis genes from alcaligenes latus (2003-11-18),

14. 6632772 - Method of coating a catalyst to a support for use in acrolein oxidation (2003-10-14),

15. 6630270 - Lithium ion battery using prismatic can with recessed surfaces (2003-10-07),

Company Overview

LG Chemical Ltd., headquartered in Seoul, South Korea, is a leading player in the field of polymer chemistry. The company specializes in the development and manufacturing of advanced materials, including olefin polymerization products, thermoplastic resins, and polymer surface modifications. LG Chemical is also at the forefront of innovations in lithium secondary batteries and fluorescent substances, contributing significantly to various industries such as automotive, electronics, and healthcare. Its expertise extends to cationic surfactants and antibody compositions, positioning it as a key contributor to sustainable and high-performance materials.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

83 Patents

#89 in Seoul

#219 in South Korea

#9,158 in the World

Seoul, South Korea

Lg Chemical Ltd.

Forward Citations = 762

281 inventors:

Jong Sung Koh (7 out of 19 patents)

Jay Hyok Chang (7 out of 9 patents)

Do Hyun Nam (7 out of 9 patents)

4. You Seung Shin (7 out of 7 patents)

5. Young Kwan Kim (7 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lg Chemical Ltd.. Retrieved from https://idiyas.com/company/lg-chemical

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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