This inventor holds 1 USPTO granted patent. Top assignees: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 2,799 
1 out of 138,671 
Years Active: 2026
Title: Heejoo Han and His Work in Nitrogen Oxide Reduction.
Introduction
Heejoo Han is an inventor based in Daejeon, South Korea. His patent work addresses methods and reactor systems for reducing nitrogen oxide concentrations in samples.
Latest Patents
The provided information lists one patent for Han: “Method of Reducing Nitrogen Oxide Concentration in Sample, Bioreactor, and Plug Flow Reactor.” The invention describes contacting a nitrogen oxide-containing sample with a microorganism in a bioreactor to reduce its nitrogen oxide concentration. It specifies the use of Fe(II)(L)-NO, a complex in which a chelating agent, iron, and nitric oxide are chelated, with the chelating agent represented by L. Han is credited with 1 patent in the information provided.
Career Highlights
Han’s listed affiliations include Samsung Electronics and the Korea Advanced Institute of Science and Technology. The available details do not specify his roles or dates of employment at either organization.
Collaborations
The listed coworkers associated with Han are Seung Hoon Song and Woo Yong Shim. The provided information does not describe their specific contributions to the patent.
Conclusion
Heejoo Han’s listed patent focuses on a microorganism-based approach to reducing nitrogen oxide concentrations, alongside bioreactor and plug flow reactor technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile