This inventor holds 25 USPTO granted patents, primarily in Aromatic Hydroxy Carboxylic Acids. Top assignees: Hoechst Aktiengesellschaft, Hoechst Celanese Corporation, Sigri Great Lakes Carbon Gmbh. Active years: 1986-1998.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Morfeldin-Walldorf, DE (1989)
- Moeferlden-Walldorf, DE (1995)
- Morfelden-Walldorf, DE (1986 - 1996)
- Morfelden, DE (1991 - 1998)
Company Filing History:
22 out of 6,705 
2 out of 1,194 
1 out of 5 Years Active: 1986-1998
Areas of Expertise:
Title: Siegbert Rittner: Innovator in Organic Chemistry
Introduction
Siegbert Rittner is a prolific inventor based in Morfelden-Walldorf, Germany, known for his significant contributions to the field of organic chemistry. With a remarkable portfolio of 25 patents, his work has paved the way for advancements in the preparation of various chemical compounds.
Latest Patents
Rittner's latest innovations include a patent for a process for the preparation of 2-hydroxynaphthalene-6-carboxylic acid. This process employs potassium carbonate and carbon monoxide at elevated temperatures exceeding 260 degrees Celsius and pressures above 10 bar. It utilizes starting materials such as 2-hydroxynaphthalene-3-carboxylic acid and potassium beta-naphtholate, significantly enhancing product selectivity by reusing secondary products.
Another notable patent is for the preparation of aromatic hydroxy carboxylic acids. This process involves the reaction of alkali metal phenolates or naphtholates with alkali metal carbonates and carbon monoxide, followed by acidification. The method allows for high chemical selectivity and good yield, while eliminating the need for additional measures to increase selectivity that are typically required in other established reactions.
Career Highlights
Throughout his career, Siegbert Rittner has made substantial contributions while working for prominent companies such as Hoechst Aktiengesellschaft and Hoechst Celanese Corporation. His work in these organizations has enabled him to develop innovative processes that enhance chemical production methods.
Collaborations
Rittner has collaborated with esteemed professionals such as Rudolf Steiner and Hans-Martin Ruffer, combining expertise to further the advancement of organic chemistry and the development of new chemical processes.
Conclusion
Siegbert Rittner's inventive spirit and commitment to improving chemical production have left an indelible mark on the field of organic chemistry. His patents not only showcase his technical skills but also reflect the potential for innovation in industrial applications. As he continues to develop new methodologies, his contributions will undoubtedly inspire future generations of inventors and researchers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile