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For the Inventor, By the Inventor

Seoul, South Korea

Chang-Nyeon Kim

This inventor holds 4 USPTO granted patents. Top assignee: Korea Institute of Science and Technology. Active years: 2004-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-Nyeon Kim. Retrieved from https://idiyas.com/inventor/chang-nyeon-kim

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

USPTO Granted Patents = 4

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:

goldMedal4 out of 2,248 
 
Korea Institute of Science and Technology
 patents

Years Active: 2004-2005

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4 patents (USPTO):Explore Patents
1. 6841087 - Refrigerant composition comprising difluoromethane, 1,1,1-trifluoroethane and 1,1,1,2-tetrafluoroethane (2005-01-11),
2. 6800216 - Refrigerant composition for replacing chlorodifluoromethane (2004-10-05),
3. 6776922 - Refrigerant composition comprising difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane (2004-08-17),
4. 6692653 - Refrigerant composition (2004-02-17),

Title: Chang-Nyeon Kim: Innovator in Refrigerant Technology

Introduction

Chang-Nyeon Kim is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of refrigerant technology, holding a total of 4 patents. His work focuses on developing environmentally friendly alternatives to traditional refrigerants.

Latest Patents

Among his latest patents, Chang-Nyeon Kim has developed a refrigerant composition that includes difluoromethane, 1,1,1-trifluoroethane, and 1,1,1,2-tetrafluoroethane. This innovative composition serves as a substitute for chlorodifluoromethane (HCFC-22). The formulation consists of a first constituent of difluoromethane, a second constituent of 1,1,1-trifluoroethane, a third constituent of 1,1,1,2-tetrafluoroethane, and a fourth constituent selected from a group that includes 1,1-difluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluoropropane, and butane. Another patent focuses on a similar refrigerant composition aimed at replacing chlorodifluoromethane, featuring various combinations of the same constituents.

Career Highlights

Chang-Nyeon Kim is affiliated with the Korea Institute of Science and Technology, where he conducts research and development in refrigerant technologies. His work has been instrumental in advancing the field and promoting sustainable practices in refrigeration.

Collaborations

He has collaborated with notable colleagues, including Byung-Gwon Lee and Jong-sung Lim, to further enhance the impact of his research and innovations.

Conclusion

Chang-Nyeon Kim's contributions to refrigerant technology exemplify his commitment to innovation and environmental sustainability. His patents reflect a significant step towards more eco-friendly refrigerant solutions.

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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