Company Filing History:

6 out of 12,157

Bayer Aktiengesellschaft

Years Active: 1998-2007

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7211697 - Method for producing specific crystalline modifications of polmorphous substances (2007-05-01),

2. 7026307 - Method for producing 1,3-disubstituted 2-nitroguanidines (2006-04-11),

3. 6720451 - Method for producing N-methyl-N′-nitroguanidine (2004-04-13),

4. 6583312 - Process for preparing optically active trimethyllactic acid and its esters (2003-06-24),

5. 6528651 - Method for production of 1,3-disubtituted 2-nitroguanidines (2003-03-04),

6. 6489513 - Process for the preparation of enantiomerically pure (5, 5′-dichloro-6,6′-dimethoxy-biphenyl-2,2′-diyl)- bis(diphenylphosphine oxides) (2002-12-03),

7. 5868938 - Chiral stationary phases for chromatographic separation of optical (1999-02-09),

8. 5739360 - Intermediates for the synthesis of bisphosphine compounds (1998-04-14),

Title: Wolfram Sirges: A Trailblazer in Crystalline Substance Innovations

Introduction

Wolfram Sirges, based in Düsseldorf, Germany, is a notable inventor recognized for his contributions to the field of crystalline substance production. With a remarkable portfolio of 8 patents, Sirges has paved the way for innovative methods that enhance chemical processing and compound synthesis.

Latest Patents

Among his latest groundbreaking patents is the "Method for producing specific crystalline modifications of polymorphous substances." This invention introduces a process for creating a distinct crystal modification from an aqueous solution of a salt of polymorphic substances, utilizing ordinary water-soluble organic solvents in conjunction with an acid or base. Additionally, he has developed a "Method for producing 1,3-disubstituted 2-nitroguanidines," which outlines a procedure for synthesizing specific compounds by reacting designated chemical entities.

Career Highlights

Wolfram Sirges has had a distinguished career, having worked with prominent companies such as Bayer Aktiengesellschaft and Bayer CropScience AG. His contributions have significantly advanced the understanding and methods available in the field of organic chemistry and material science.

Collaborations

Throughout his career, Sirges has collaborated with esteemed colleagues including Kai van Laak and Rolf Grosser. Their joint efforts have led to significant advancements in their respective areas, fostering an environment of innovation and research.

Conclusion

Wolfram Sirges exemplifies the spirit of innovation through his inventive methodologies and collaborations. His patents not only reflect his expertise but also contribute to advancing the field of crystallography and organic synthesis, laying a foundation for future discoveries in the chemical sciences.

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