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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Da-Young Hwang

This inventor holds 12 USPTO granted patents and 18 published patent applications and 2 EPO patents. Top assignees: Sk Chemicals Co., Ltd., Sk Chemicals. Active years: 2024-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Da-Young Hwang. Retrieved from https://idiyas.com/inventor/da-young-hwang

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

USPTO Granted Patents = 12 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.6

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:

goldMedal10 out of 201 
 
Sk Chemicals Co., Ltd.
 patents
silverMedal2 out of 12 
 
Sk Chemicals
 patents

Years Active: 2024-2026

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12 patents (USPTO):Explore Patents
1. 12662585 - Method for producing polyester resin by using regenerated bis(2-hydroxyethyl) terephthalate aqueous solution (2026-06-23),
2. 12606668 - Polyester resin blend (2026-04-21),
3. 12415886 - Polyester resin blend and article formed from the same (2025-09-16),
4. 12351679 - Crystalline polyester resin and manufacturing method thereof (2025-07-08),
5. 12331175 - Polyester film and preparation method thereof (2025-06-17),
6. 12275826 - Polyester resin using recycled bis(2-hydroxyethyl) terephthalate and article including same (2025-04-14),
7. 12264244 - Polyester resin blend (2025-04-01),
8. 12168723 - Stretched polyester film and method for preparing the same (2024-12-17),
9. 12077634 - Method for purifying bis-2-hydroxylethyl terephthalate and polyester resin comprising same (2024-09-03),
10. 12071525 - Polyester film and preparation method thereof (2024-08-27),
11. 12018118 - Polyester resin comprising regenerated bis(2-hydroxyethyl)terephthalate and film (2024-06-25),
12. 11993706 - Polyester film and preparation method therefor (2024-05-28),

Title: The Innovations of Da-Young Hwang

Introduction

Da-Young Hwang is a prominent inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of materials science, particularly in the development of polyester resin blends. With a total of 12 patents to his name, Hwang's work is recognized for its innovative approach to recycling and sustainability.

Latest Patents

Hwang's latest patents include a polyester resin blend and an article formed from the same. This invention provides a polyester resin blend that exhibits excellent processability, even when containing recycled polyethylene terephthalate alongside virgin polyethylene terephthalate. The blend is designed to produce high-quality molded articles, particularly through extrusion blow molding. Additionally, it is reusable, contributing to the growing demand for continuously usable plastics. Another notable patent is for a crystalline polyester resin and its manufacturing method. This resin boasts the necessary crystallinity for molding and recycling processes while minimizing fusion during preparation, thus enhancing productivity and moldability.

Career Highlights

Hwang is currently employed at Sk Chemicals Co., Ltd., where he continues to innovate in the field of polymer materials. His work has not only advanced the technology behind polyester resins but has also addressed environmental concerns related to plastic waste.

Collaborations

Hwang collaborates with talented individuals such as Yoo Jin Lee and Kwang-Woo Park, contributing to a dynamic research environment that fosters innovation and creativity.

Conclusion

Da-Young Hwang's contributions to the field of polyester resins exemplify the intersection of innovation and sustainability. His patents reflect a commitment to advancing materials science while addressing pressing environmental challenges.

Profile summary based on public USPTO records.
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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