Location History:
- Bayeuth, DE (1998)
- Bayreuth, DE (1999 - 2001)
- Kriftel, DE (2000 - 2002)
- Freinsheim, DE (2006 - 2019)
Company Filing History:
5 out of 2,614 
5 out of 10,754 
4 out of 480 
Years Active: 1998-2019
Title: **Andreas Stohr: Innovator in Perylene Pigment Technologies**
Introduction
Andreas Stohr is a prominent inventor based in Freinsheim, Germany, recognized for his significant contributions to the field of pigment technology. With a remarkable portfolio of 20 patents, Stohr has focused primarily on the synthesis of perylene pigments, which are essential for various applications in the coatings and plastics industries.
Latest Patents
Stohr's recent innovations include two notable patents that enhance the preparation of Pigment Red 149 and other related pigments. The first patent details a novel process for preparing N,N'-di(3′,5′-dimethylphenyl)perylene bis(dicarboximide) through the reaction of perylene-3,4,9,10-tetracarboxylic dianhydride with 3,5-dimethylaniline in an aqueous medium. The catalyst used in this process is either a secondary or tertiary amine, and it incorporates seed crystals of the product to improve yield and efficiency.
The second patent offers a method for synthesizing perylene pigments from perylenetetracarboxylic acids or their functional derivatives, reacting them with aromatic diamines in an aqueous reaction medium. This innovative approach allows for the production of pigments that can be tailored with modified properties, beneficial to a variety of commercial applications.
Career Highlights
Throughout his career, Andreas Stohr has worked with established companies, including Daimler Chrysler AG and BASF Aktiengesellschaft. His time at these corporations has allowed him to leverage his expertise in chemical synthesis and contribute to advancements in pigment technology.
Collaborations
In his professional journey, Stohr has collaborated with industry professionals such as Michael Gailberger and Katja Strelzyk. These partnerships have played a significant role in refining his inventions and expanding their applications in various sectors.
Conclusion
Andreas Stohr’s innovative work in the pigment industry exemplifies the vital role of inventors in advancing technology and enhancing product performance. His continuous dedication to research and development not only furthers the field of perylene pigments but also paves the way for new applications in industrial practices. With each patent, Stohr reinforces his status as a leading figure in innovation and excellence.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.