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For the Inventor, By the Inventor

Daejeon, South Korea

Kil-Yeong Choi

This inventor holds 21 USPTO granted patents, primarily in Polymer Chemistry. Top assignees: Korea Research Institute of Chemical Technology, Cheil Industries Inc., Other. Active years: 1993-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kil-Yeong Choi. Retrieved from https://idiyas.com/inventor/kil-yeong-choi

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

USPTO Granted Patents = 21

% Patents Active = 95.2

Average Co-Inventor Count = 4.4

ph-index = 4

Forward Citations = 54(Granted Patents)


Location History:

  • Taejeon, KR (1993)
  • Daejeon-Jikhalshi, KR (1995 - 1996)
  • Doryong-dong, KR (1996)
  • Daejeon, KR (1993 - 2003)

Company Filing History:

goldMedal19 out of 654 
 
Korea Research Institute of Chemical Technology
 patents
silverMedal1 out of 787 
 
Cheil Industries Inc.
 patents
bronzeMedal2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1993-2003

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Areas of Expertise:
Reactive Photo Acid
Heat-Resistant Photoresist
Polyamide Precursor
Polycarbonates
Soluble Polyimide Resin
Polyarylether
Liquid Crystal Alignment
Polyamideimide Resins
Phosphoric Acid Chelate
Uranyl Ion Adsorption
Aromatic Polyamide
Nadimide-Terminated Polyarylates
21 patents (USPTO):Explore Patents
1. 6582879 - Reactive photo acid-generating agent and heat-resistant photoresist composition with polyamide precursor (2003-06-24),
2. 6525109 - Process of preparing polycarbonates using microwave (2003-02-25),
3. 6433184 - Polyamide-imide having head-to-tail backbone (2002-08-13),
4. 6423812 - Process of preparing polycarbonates (2002-07-23),
5. 6232432 - Process for the preparation of polycarbonates (2001-05-15),
6. 6162893 - Soluble polyimide resin having a dialkyl substituent for a liquid (2000-12-18),
7. 616289 - Soluble polyimide resin having a dialkyl substituent for a liquid (2000-12-19),
8. 6046303 - Soluble polyimide resin having alkoxy substituents and the preparation (2000-04-04),
9. 6031067 - Soluble polyimide resin and process of preparation of the same (2000-02-29),
10. 6018055 - Polyarylether containing N-substituted imide groups and process for (2000-01-25),
11. 6013760 - Soluble polyimide resin for liquid crystal alignment layer and process (2000-01-11),
12. 5955568 - Process for preparing polyamideimide resins by direct polymerization (1999-09-21),
13. 5919942 - Cyclohexane-1,2,4,5-diimide derivative and process for preparing the same (1999-07-06),
14. 5824766 - Polyamideamic acid resin prepolymers, high heat resistant polyamideimide (1998-10-20),
15. 5532334 - Process for preparing polyamideimide resins having high molecular weight (1996-07-02),

Title: Innovations and Contributions of Kil-Yeong Choi

Introduction

Kil-Yeong Choi, based in Daejeon, South Korea, is a distinguished inventor renowned for his contributions to the field of chemical technology. With an impressive portfolio of 21 patents, Choi has established himself as a key figure in the development of advanced materials and innovative processes.

Latest Patents

Among his latest innovations, Choi has developed a reactive photo acid-generating agent and a heat-resistant photoresist composition using a polyamide precursor. Additionally, he has pioneered a process for preparing polycarbonates utilizing microwave radiation. This innovative method involves solid-state polymerization, where polycarbonate prepolymers are converted into crystalline particles, ultimately resulting in high-quality polycarbonates produced in a significantly reduced timeframe.

Career Highlights

Choi has significantly contributed to various organizations throughout his career. Notably, he worked at the Korea Research Institute of Chemical Technology, where he was able to leverage his expertise to advance research and practical applications in chemical technology.

Collaborations

Throughout his inventions, Kil-Yeong Choi has collaborated with esteemed colleagues, including Mi-hie Yi and Moon-Young Jin. These partnerships have facilitated the development of groundbreaking technologies and enhanced the potential for market applications of their research.

Conclusion

Kil-Yeong Choi's dedication to innovation and excellence has resulted in significant advancements in chemical processes and materials technology. His extensive patent portfolio is a testament to his ingenuity and impact in the realm of scientific research and industrial applications.

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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