This inventor holds 1 USPTO granted patent. Top assignee: Siegfried Aktiengesellschaft. Active years: 1980.
Company Filing History:
Years Active: 1980
Title: Bernhard Granwehr: Innovator in Liquid Crystal Technology
Introduction
Bernhard Granwehr is a notable inventor based in Zofingen, Switzerland. He has made significant contributions to the field of chemistry, particularly in the preparation of specialized compounds used in liquid crystal technology. His innovative work has led to the development of a unique patent that showcases his expertise and creativity.
Latest Patents
Granwehr holds a patent for the "Preparation of trans-4-alkyl-cyanoarylcyclohexanes." This invention involves a stereoselective method for synthesizing trans-4-alkyl-cyanoarylcyclohexanes from arylcarboxylic acids. The process includes converting carboxylic acids into a mixture of cis and trans isomers, esterifying the resulting isomers, and hydrogenating them to produce cyclohexane-4-carboxylic acid esters. The final product is particularly valuable as a nematic liquid crystal, which has various applications in display technologies.
Career Highlights
Granwehr is associated with Siegfried Aktiengesellschaft, a company known for its focus on pharmaceutical and chemical products. His work at the company has allowed him to explore and develop innovative solutions in the field of liquid crystals. His dedication to research and development has positioned him as a key figure in his area of expertise.
Collaborations
Granwehr collaborates with Rene Gnehm, contributing to the advancement of their projects and enhancing the innovative capabilities of their team.
Conclusion
Bernhard Granwehr's contributions to the field of liquid crystal technology through his patent and work at Siegfried Aktiengesellschaft highlight his role as a significant inventor. His innovative methods and collaborative efforts continue to influence advancements in the industry.