Ansan, South Korea

Hyun-Sik Han

This inventor holds 5 USPTO granted patents and 3 published patent applications and 8 EPO patents. Top assignees: Heesung Catalysts Corporation, Heesung Engelhard Corporation. Active years: 2010-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hyun-Sik Han. Retrieved from https://idiyas.com/inventor/hyun-sik-han-iff2fd41

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.8

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2010-2014

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5 patents (USPTO):Explore Patents

Title: Innovations of Hyun-Sik Han

Introduction

Hyun-Sik Han is a notable inventor based in Ansan, South Korea. He has made significant contributions to the field of catalyst compositions and exhaust gas purification. With a total of 5 patents, his work has had a considerable impact on environmental technology.

Latest Patents

One of his latest patents involves a catalyst composition designed for reducing NOx emissions through a two-step process. This innovative method reacts NOx with H2 to produce ammonia, which is then used to further react with NOx, rather than relying on direct reduction by H2. Another significant patent is a three-layered catalyst system for purifying exhaust gases from internal combustion engines. This system features layers of precious metal components, including platinum and palladium, which are sequentially layered on a substrate. This design enhances the conversion ratio of hydrocarbons (HC) and carbon monoxide (CO), thereby improving purification efficiency.

Career Highlights

Hyun-Sik Han has worked with prominent companies in the field, including Heesung Catalysts Corporation and Heesung Engelhard Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in catalyst technology.

Collaborations

Some of his notable coworkers include Eun-Seok Kim and Gon Seo, who have collaborated with him on various projects related to catalyst development.

Conclusion

Hyun-Sik Han's contributions to catalyst technology and exhaust gas purification demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of chemical processes and a dedication to improving air quality.

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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