This inventor holds 2 USPTO granted patents. Top assignee: Basf Aktiengesellschaft. Active years: 1980-1985.
Company Filing History:
Years Active: 1980-1985
Title: Wolfgang Eisfeld: Innovator in Chemical Processes
Introduction
Wolfgang Eisfeld is a notable inventor based in Ludwigshafen, Germany. He has made significant contributions to the field of chemistry, particularly in the development of innovative chemical processes. With a total of 2 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
Eisfeld's latest patents include the preparation of 4,4'-diaminobenzophenones. This process involves oxidizing a specific compound with aqueous nitric acid in the presence of nitrobenzene or an alkanoic acid under superatmospheric pressure. The resulting compounds are produced with high yield and purity. Another significant patent is for the manufacture of very pure halonaphthalic acid anhydrides. This process utilizes oxidation with nitric acid in a mixture of aliphatic carboxylic acid, water, and nitric acid, along with vanadate, to create intermediates for optical brighteners.
Career Highlights
Eisfeld is associated with BASF Aktiengesellschaft, a leading chemical company. His work at BASF has allowed him to explore and develop innovative chemical processes that enhance product quality and efficiency. His contributions have been instrumental in advancing the company's research and development efforts.
Collaborations
Throughout his career, Wolfgang Eisfeld has collaborated with notable colleagues, including Walter Disteldorf and Rolf-Dieter Kohler. These collaborations have fostered a productive environment for innovation and have led to the successful development of various chemical processes.
Conclusion
Wolfgang Eisfeld's contributions to the field of chemistry through his patents and collaborations highlight his role as an influential inventor. His innovative approaches continue to shape the industry and inspire future advancements in chemical processes.