Kwang Jin Lee

This inventor holds 19 USPTO granted patents and 14 published patent applications, plus 1 CIPO patent and 9 EPO patents, primarily in Polymer Chemistry. Top assignee: Lg Chem, Ltd. Active years: 2015-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kwang Jin Lee. Retrieved from https://idiyas.com/inventor/kwang-jin-lee-k68bbam9

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 19 (Patent Applications = 14)

% Patents Active = 100.0

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 9 (Patent Applications = 18)

Average Co-Inventor Count = 4.5

ph-index = 1

Forward Citations = 2(Granted Patents)

Location History:

Yeosu-si, KR (2015)
Daejeon, KR (2017 - 2024)

Company Filing History:

19 out of 8,642

Lg Chem, Ltd

patents

Years Active: 2015-2025

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Areas of Expertise:

Graft Copolymer

Vinyl Chloride Polymer

Core-Shell Copolymer

Acrylic Copolymer

Thermoplastic Resin

Emulsifying Initiator

PVC Foam Processing Aid

Composition Preparation

Polymer Composition

Thermoplastic Composition

Nanoparticles

Foam Molding Properties

19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12454592 - Graft copolymer, method for preparing the same, and resin composition including the same (2025-10-28),

2. 12415876 - Method for producing vinyl chloride-based polymer (2025-09-16),

3. 12351665 - Graft copolymer, method for preparing the same, and resin composition including the same (2025-07-08),

4. 11952443 - Composition for preparing vinyl chloride-based polymer and method of preparing vinyl chloride-based polymer using the same (2024-04-09),

5. 11952442 - Method for preparing vinyl chloride-based polymer (2024-04-09),

6. 11912804 - Core-shell copolymer, method for preparing the same and thermoplastic resin composition including the same (2024-02-27),

7. 11795258 - Method for preparing core-shell copolymer, core-shell copolymer prepared therefrom and resin composition including the same (2023-10-24),

8. 11773194 - Vinyl chloride-based polymer and method for preparing same (2023-10-03),

9. 11760818 - Method of preparing vinyl chloride-based polymer (2023-09-19),

10. 10889660 - Emulsifying initiator, core-shell copolymer, and thermoplastic resin composition comprising same (2021-01-12),

11. 10787534 - Method for preparing core-shell copolymer, core-shell copolymer and resin composition including the same (2020-09-29),

12. 10703839 - Method for preparing acrylic copolymer, acrylic copolymer and resin composition comprising the copolymer (2020-07-07),

13. 10150831 - Acrylic processing aid and vinyl chloride resin composition comprising the same (2018-12-11),

14. 10106678 - Acrylic processing aid and vinyl chloride resin composition comprising the same (2018-10-23),

15. 10093760 - Vinyl chloride-vinyl acetate copolymer and method of preparing the same (2018-10-09),

Title: The Innovations of Kwang Jin Lee

Introduction

Kwang Jin Lee is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of polymer chemistry, holding a total of 19 patents. His work focuses on developing advanced materials and methods that enhance the properties and applications of polymers.

Latest Patents

Among his latest patents is a graft copolymer, which includes a rubbery polymer composed of a conjugated diene-based monomer unit and a soft domain. This graft copolymer incorporates an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and an alkali metal sulfonate-based monomer unit. The soft domain is formed by including a mineral-based oil, which consists of 70 wt % to 100 wt % of a mineral oil and 0 wt % to 30 wt % of a silicone-based oil. The mineral-based oil is included in 0.2 parts by weight to 0.5 parts by weight based on 100 parts by weight of the rubbery polymer. Additionally, the alkali metal sulfonate-based monomer unit is included in 0.8 wt % to 1.5 wt % based on the graft copolymer. Another notable patent involves a method for producing a vinyl chloride-based polymer. This method enhances processability by achieving low-viscosity properties when plastisol is mixed using the produced polymer, while also improving fogging properties by suppressing the generation of volatile organic compounds.

Career Highlights

Kwang Jin Lee is currently employed at LG Chem, Ltd., a leading chemical company known for its innovative solutions in materials science. His work at LG Chem has allowed him to push the boundaries of polymer technology and contribute to the development of new materials that meet industry demands.

Collaborations

He has collaborated with notable colleagues, including Yoon Ho Kim and Kyung Bok Sun, to further advance research and development in polymer applications.

Conclusion

Kwang Jin Lee's contributions to polymer chemistry through his innovative patents and work at LG Chem highlight his significant role in advancing material science. His ongoing research continues to impact various industries, showcasing the importance of innovation in technology.

Profile summary based on public USPTO records.