This inventor holds 3 USPTO granted patents. Top assignee: Dynamit Nobel Aktiengesellschaft. Active years: 1982-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Niederkassel-Ranzel, DE (1982)
- Niederkassel, DE (1983)
- Ranzel-Kolonie, DE (1989)
Company Filing History:
Years Active: 1982-1989
Title: Gerhart Hoffmann: Innovator in Dimethyl Terephthalate Production
Introduction
Gerhart Hoffmann is a notable inventor based in Niederkassel, Germany. He has made significant contributions to the field of chemical engineering, particularly in the production of dimethyl terephthalate. Hoffmann holds a total of 3 patents that showcase his innovative approaches to chemical processes.
Latest Patents
Hoffmann's latest patents include a process for the preparation of dimethyl terephthalate. This process enhances the yield of dimethyl terephthalate obtained by the oxidation of a mixture of p-xylene and methyl p-toluate, preferably using air. The innovation involves the use of a mixture of cobalt and manganese compounds as the oxidation catalyst. Another significant patent is a method for obtaining and reusing the oxidation catalyst in the Witten DMT process. This method focuses on recovering and utilizing a heavy metal oxidation catalyst from a high-boiling distillation residue. The process includes extracting the residue with water or a dilute aqueous solution of low molecular weight aliphatic monocarboxylic acids or alcohols, and recycling the extract into the oxidation stage of the Witten process.
Career Highlights
Hoffmann's career is marked by his work at Dynamit Nobel Aktiengesellschaft, where he has applied his expertise in chemical processes. His innovative methods have contributed to advancements in the production of important chemical compounds.
Collaborations
Throughout his career, Hoffmann has collaborated with notable colleagues, including Rudolf Cordes and Rudolph Cordes. These collaborations have further enriched his work and contributed to the development of his patented processes.
Conclusion
Gerhart Hoffmann is a distinguished inventor whose work in the field of chemical engineering has led to significant advancements in the production of dimethyl terephthalate. His innovative patents and contributions to the industry highlight his expertise and commitment to improving chemical processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile