Company Filing History:
1 out of 45 
1 out of 1,577 
Years Active: 1995-1996
Title: Ohantaek Han: Innovator in Biotechnology
Introduction
Ohantaek Han is a notable inventor based in Germantown, WI (US). He has made significant contributions to the field of biotechnology, particularly in the area of coal processing and the production of gamma-lactones. With a total of 2 patents, his work showcases innovative methods that leverage biological processes for industrial applications.
Latest Patents
One of Han's latest patents is a biological method for coal comminution. This method involves inoculating a coal sample with anaerobic bacteria or decarboxylating enzymes and incubating the inoculated sample. The microbes and enzymes biochemically modify the coal, reducing its size to ultra-fine particles. This biotreatment enhances the coal's dispersibility in coal-water slurries, making it more efficient for various applications. Another significant patent is the process for the production of C.sub.10 and/or C.sub.12 gamma-lactones. This process utilizes microorganisms of the genus Mortierella to convert corresponding carboxylic acids into gamma-lactones. The method involves growing a culture of Mortierella in a nutrient-rich medium while controlling the carboxylic acid feed rate based on the dissolved oxygen level in the culture medium.
Career Highlights
Throughout his career, Ohantaek Han has worked with prominent organizations such as the Michigan Biotechnology Institute and International Flavors & Fragrances Inc. His experience in these companies has allowed him to develop and refine his innovative approaches to biotechnology.
Collaborations
Han has collaborated with esteemed colleagues, including Mahendra K Jain and Ramani Narayan. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Ohantaek Han's contributions to biotechnology through his innovative patents demonstrate his commitment to advancing industrial processes. His work not only enhances the efficiency of coal processing but also opens new avenues for the production of valuable chemical compounds.