This inventor holds 2 USPTO granted patents. Top assignees: Ciba-Geigy Ag, Ciba-Geigy Corporation. Active years: 1980.
Company Filing History:
Years Active: 1980
Title: Jean Riethmann: Innovator in Chemical Processes
Introduction
Jean Riethmann is a notable inventor based in Rheinfelden, Switzerland. He has made significant contributions to the field of chemistry, particularly in the production of valuable chemical intermediates. With a total of 2 patents to his name, Riethmann's work has had a lasting impact on chemical manufacturing processes.
Latest Patents
Riethmann's latest patents include a process for producing cyameluric chloride. This innovative process involves passing cyanuric chloride, mixtures of cyanuric chloride and cyanogen chloride, or cyanogen chloride at temperatures ranging from 200°C to 700°C, together with oxygen over active charcoal. The resulting cyameluric chloride is then separated by desublimation from the gas mixture obtained. Cyameluric chloride is recognized as a valuable intermediate in various chemical applications.
Another significant patent by Riethmann describes a process for the production of substituted benzal and benzyl bromides. This invention focuses on the side-chain bromination of correspondingly substituted toluene. The process involves introducing elementary chlorine, under visible light irradiation, into a two-phase system consisting of an aqueous phase and an organic phase containing the substituted toluene, at least one metal bromide, and a base. The compounds obtained by this process are also detailed in the patent.
Career Highlights
Throughout his career, Jean Riethmann has worked with prominent companies such as Ciba-Geigy AG and Ciba-Geigy Corporation. His experience in these organizations has contributed to his expertise in chemical processes and innovation.
Collaborations
Riethmann has collaborated with notable individuals in the field, including Franz Marti and Tibor Somlo. These collaborations have likely enriched his work and contributed to the development of his patented processes.
Conclusion
Jean Riethmann's contributions to the field of chemistry through his innovative patents demonstrate his expertise and commitment to advancing chemical manufacturing processes. His work continues to influence the industry and highlights the importance of innovation in scientific research.