Location History:
- Seoul, KR (2006)
- Daejeon, KR (2015 - 2016)
Company Filing History:
2 out of 737 
1 out of 1,572 
1 out of 62 
Years Active: 2006-2016
Title: Joon Sik Lee: Innovator in Oil Marker Compositions and Alkyl Butyrate Production
Introduction
Joon Sik Lee is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of chemical engineering, particularly in the development of innovative methods for identifying oil authenticity and producing alkyl butyrate. With a total of 3 patents, his work showcases a blend of creativity and scientific rigor.
Latest Patents
One of Joon Sik Lee's latest patents is focused on diamine-based oil marker compositions and a method of identifying oil products using these compositions. This invention provides a method for determining the authenticity of oil by reacting it with a developer to produce a color that can be measured for absorbance. The oil marker developed allows for both quantitative and qualitative assessments of oil authenticity, characterized by a rapid reaction rate, excellent reproducibility, and distinct color development observable to the naked eye.
Another notable patent involves a method of preparing alkyl butyrate from fermented liquid using microorganisms. This process includes producing a fermented liquid containing butyrate salt through fermentation with specific strains, extracting butyric acid, and then converting it into alkyl butyrate through an esterification reaction. This innovative method efficiently extracts butyric acid from microbial culture fluid and prepares competitively priced alkyl butyrate while minimizing energy consumption.
Career Highlights
Joon Sik Lee has worked with notable organizations such as SK Innovation Co., Ltd. and Seoul National University. His experience in these institutions has allowed him to collaborate on various research projects and contribute to advancements in chemical engineering.
Collaborations
Some of his coworkers include Eun Hee Park and Ohmyoung Kwon, who have collaborated with him on various projects, enhancing the scope and impact of his inventions.
Conclusion
Joon Sik Lee's innovative work in oil marker compositions and alkyl butyrate production highlights his significant contributions to the field of chemical engineering. His patents reflect a commitment to advancing technology and improving processes in the industry.