This inventor holds 2 USPTO granted patents. Top assignee: Dynamit Nobel Aktiengesellschaft. Active years: 1980-1981.
Location History:
- Hennef, DE (1980)
- Hennef-Geisbach, DE (1981)
Company Filing History:
Years Active: 1980-1981
Title: Klaus D. Steffen: Innovator in Chemical Processes
Introduction
Klaus D. Steffen is a notable inventor based in Hennef, Germany. He has made significant contributions to the field of chemical processes, particularly in the preparation of various compounds. With a total of 2 patents to his name, Steffen's work has had a meaningful impact on the industry.
Latest Patents
Steffen's latest patents include a method for preparing bis-(chloromethyl)-tetrachlorobenzenes and a method for preparing phthalide. The first patent describes a process where xylene is contacted with chlorine to form tetrachloroxylene, utilizing an iron chloride catalyst. In the second stage, tetrachloroxylene is further chlorinated in the presence of a radical catalyst and hexamethylenetetramine, ensuring that the iron chloride catalyst does not interfere with the reaction. The second patent outlines a method for chlorinating o-toluic acid at temperatures ranging from 30°C to 260°C to recover phthalide.
Career Highlights
Klaus D. Steffen is associated with Dynamit Nobel Aktiengesellschaft, a company known for its innovative approaches in the chemical industry. His work has contributed to advancements in chemical manufacturing processes, showcasing his expertise and dedication to innovation.
Collaborations
Steffen has collaborated with Fritz Englaender, further enhancing the scope of his research and development efforts. Their partnership has likely led to the exploration of new ideas and methodologies in their field.
Conclusion
Klaus D. Steffen is a distinguished inventor whose contributions to chemical processes have been recognized through his patents. His innovative methods continue to influence the industry, demonstrating the importance of research and collaboration in advancing technology.