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For the Inventor, By the Inventor

Pohang, South Korea

Hong-Chul Jeong

This inventor holds 9 USPTO granted patents and 1 EPO patent. Top assignee: Posco. Active years: 2004-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hong-Chul Jeong. Retrieved from https://idiyas.com/inventor/hong-chul-jeong

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

USPTO Granted Patents = 9

% Patents Active = 88.9

 

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 98(Granted Patents)


Location History:

  • Kyungsangbook-do, KR (2004)
  • Pohang-si, KR (2005 - 2019)

Company Filing History:

goldMedal9 out of 706 
 
Posco
 patents

Years Active: 2004-2025

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9 patents (USPTO):Explore Patents
1. 12390892 - Welding wires for obtaining giga-grade welds, welded structures manufacturing using same, and welding method thereof (2025-08-19),
2. 10370736 - Ultrahigh-strength steel for welding structure with excellent toughness in welding heat-affected zones thereof, and method for manufacturing same (2019-08-06),
3. 10266929 - Ultrahigh-strength gas metal arc welded joint having excellent impact toughness, and solid wire for producing same (2019-04-23),
4. 10065272 - Super high-strength flux cored arc welded joint having excellent impact toughness, and welding wire for manufacturing same (2018-09-04),
5. 7396423 - Method for manufacturing steel plate having superior toughness in weld heat-affected zone (2008-07-08),
6. 7105066 - Steel plate having superior toughness in weld heat-affected zone and welded structure made therefrom (2006-09-12),
7. 6966955 - Steel plate having TiN+ZrN precipitates for welded structures, method for manufacturing same and welded structure made therefrom (2005-11-22),
8. 6946038 - Steel plate having Tin+MnS precipitates for welded structures, method for manufacturing same and welded structure (2005-09-20),
9. 6686061 - Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom (2004-02-03),

Title: Innovations of Hong-Chul Jeong in Welding Technology

Introduction

Hong-Chul Jeong is a prominent inventor based in Pohang-si, South Korea. He has made significant contributions to the field of welding technology, holding a total of 9 patents. His work focuses on developing advanced materials and methods that enhance the quality and strength of welded structures.

Latest Patents

Among his latest patents are innovations related to welding wires designed for obtaining giga-grade welds. These patents include a welding wire that comprises specific percentages of carbon, silicon, manganese, phosphorus, sulfur, chromium, and molybdenum, ensuring superior performance in welding applications. Additionally, he has developed ultrahigh-strength steel for welded structures, which boasts excellent toughness in the heat-affected zones during welding. This steel composition includes various elements such as carbon, silicon, manganese, nickel, molybdenum, chromium, and others, all meticulously balanced to achieve optimal results.

Career Highlights

Hong-Chul Jeong is associated with Posco, a leading steel manufacturing company known for its innovative approaches in metallurgy. His work at Posco has been instrumental in advancing welding technologies, contributing to the company's reputation for quality and innovation in the industry.

Collaborations

He has collaborated with notable colleagues, including Hae-Chang Choi and Dong-Ryeol Lee, to further enhance the research and development of welding technologies. Their combined expertise has led to significant advancements in the field.

Conclusion

Hong-Chul Jeong's contributions to welding technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of stronger and more reliable welded structures.

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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