This inventor holds 5 USPTO granted patents. Top assignees: Ciba Specialty Chemicals Corporation, Novartis Ag, Novartis Corporation. Active years: 1999-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kandern, DE (1999 - 2001)
- Kandern-Wollback, DE (2009)
Company Filing History:



Years Active: 1999-2009
Title: Bernd Siebenhaar: Innovator in Acrylic Acid Derivatives
Introduction
Bernd Siebenhaar is a notable inventor based in Kandern, Germany. He has made significant contributions to the field of chemistry, particularly in the preparation of acrylic acid derivatives. With a total of 5 patents to his name, Siebenhaar's work has had a considerable impact on the industry.
Latest Patents
One of his latest patents focuses on the "Preparation of acrylic acid derivatives from α- or β-hydroxy carboxylic acids." This invention is directed towards a process for the preparation of α,β-unsaturated acids, esters, and amides from α- or β-hydroxycarboxylic acids or esters. The process achieves high yields and selectivity, and the α,β-unsaturated acids or esters can be prepared in the presence of specific dehydration and/or esterification catalysts. Additionally, the α,β-unsaturated amides or substituted amides are prepared optionally with a dehydration and/or amidation catalyst. Notably, the source of α- or β-hydroxycarboxylic acids or precursors is preferably derived from renewable resources.
Career Highlights
Throughout his career, Bernd Siebenhaar has worked with prominent companies such as Ciba Specialty Chemicals Corporation and Novartis AG. His experience in these organizations has allowed him to refine his expertise and contribute to innovative projects in the chemical industry.
Collaborations
Siebenhaar has collaborated with notable colleagues, including Bruno Casagrande and Victor Paul Eliu. These partnerships have further enhanced his research and development efforts.
Conclusion
In summary, Bernd Siebenhaar is a distinguished inventor whose work in acrylic acid derivatives has advanced the field of chemistry. His innovative patents and collaborations reflect his commitment to scientific progress and sustainability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile