This inventor holds 3 USPTO granted patents. Top assignee: Ciba-Geigy Corporation. Active years: 1991-1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1991-1994
Title: Helmut Prestel: Innovator in Chemical Processes
Introduction
Helmut Prestel is a notable inventor based in Bruchsal, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of various chemical compounds. With a total of 3 patents to his name, Prestel's work has had a considerable impact on the industry.
Latest Patents
Among his latest patents, Prestel has developed a process for the preparation of benzotriazoles, specifically 2-(2-Hydroxyphenyl)-2H-benzotriazoles. This innovative method involves catalytic hydrogenation of a suitable o-nitroazo compound in the presence of various hydrogenation catalysts. Additionally, he has patented a process for the preparation of alkylhydroxyanilinothiotriazine, which includes a series of reactions that yield high purity and yield products.
Career Highlights
Helmut Prestel has been associated with Ciba-Geigy Corporation, where he has applied his expertise in chemical processes. His work has contributed to advancements in the field, showcasing his dedication to innovation and research.
Collaborations
Throughout his career, Prestel has collaborated with notable colleagues such as Rudolf Maul and Heinz Steiner. These partnerships have further enhanced his contributions to the field of chemistry.
Conclusion
Helmut Prestel's innovative work in chemical processes has established him as a prominent figure in the industry. His patents reflect a commitment to advancing chemical research and development.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile