This inventor holds 2 USPTO granted patents. Top assignee: Basf Aktiengesellschaft. Active years: 1990-1991.
Company Filing History:
Years Active: 1990-1991
Title: Barbara Jessel: Innovator in Chemical Engineering
Introduction
Barbara Jessel is a prominent inventor based in Ludwigshafen, Germany. She has made significant contributions to the field of chemical engineering, particularly in the preparation of valuable chemical compounds. With a total of 2 patents to her name, her work has had a notable impact on various industrial applications.
Latest Patents
One of Barbara Jessel's latest patents is the "Preparation of 2,3,5-trimethyl-p-benzoquinone." This innovative process involves the oxidation of trimethylphenol with oxygen or an oxygen-containing gas in the presence of a catalyst containing a copper(II) halide. The reaction occurs in a two-phase medium consisting of water and an aliphatic alcohol at elevated temperatures. The method yields particularly good results when using a saturated aliphatic alcohol with 12 to 18 carbon atoms, such as 1-dodecanol, and a catalyst system that includes copper(II) halide and alkaline earth metal halides.
Another significant patent is the "Preparation of d-.alpha.-tocopherol from natural intermediates." This process involves methylation at the aromatic ring of tocopherols, followed by catalytic hydrogenation. The reaction is conducted at temperatures ranging from 150°C to 200°C in the presence of an alkyl ester of phosphoric or phosphorous acid, resulting in the efficient production of d-.alpha.-tocopherol.
Career Highlights
Barbara Jessel is currently employed at BASF Aktiengesellschaft, a leading global chemical company. Her work at BASF has allowed her to explore innovative solutions in chemical synthesis and product development. Her contributions have been instrumental in advancing the company's research initiatives and enhancing its product offerings.
Collaborations
Throughout her career, Barbara has collaborated with notable colleagues, including Ulrich Hoercher and Peter Lechtken. These collaborations have fostered a dynamic exchange of ideas and have led to the successful development of various chemical processes.
Conclusion
Barbara Jessel is a distinguished inventor whose work in chemical engineering has led to significant advancements in the preparation of important chemical compounds. Her patents reflect her innovative spirit and commitment to excellence in her field.