Company Filing History:

25 out of 6,662

Hoechst Aktiengesellschaft

where one patent can have more than one assignee

Years Active: 1977-1998

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5811575 - Process for preparing vinyl-phosphonic acids (1998-09-22),

2. 5744010 - Process for the preparation of the non-toxic salts of (1998-04-28),

3. 5710330 - Process for preparing alkanephosphonic anhydrides (1998-01-20),

4. 5475128 - Process for preparing dialkyl vinylphosphonates (1995-12-12),

5. 5391815 - Method of separating vinylphosphonic acid from crude mixtures (1995-02-21),

6. 5319138 - Process for the preparation of pure propanephosphonic anhydride (1994-06-07),

7. 5292931 - Carrier catalyst, process for its preparation, and its use for the (1994-03-08),

8. 5250487 - Carrier catalyst, process for its preparation, and its use for the (1993-10-05),

9. 5225388 - Method for making a catalyst (1993-07-06),

10. 5210259 - Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosphonic (1993-05-11),

11. 5066365 - Process for the isolation of vinyl acetate by distillation (1991-11-19),

12. 4960919 - Process for the preparation of alkyl alkenylphosphinates (1990-10-02),

13. 4902823 - Process for the preparation of vinyl acetate (1990-02-20),

14. 4894470 - Process for the preparation of dialkyl vinylphosphonates (1990-01-16),

15. 4818347 - Process for the isolation of vinyl acetate (1989-04-04),

Title: Gunter Roscher: Innovator in Vinyl-Phosphonic Acid Chemistry

Introduction

Gunter Roscher, based in Kelkheim, Germany, is a notable inventor recognized for his contributions to chemical innovations. With an impressive portfolio of 26 patents, Roscher has made significant strides in the field of vinyl-phosphonic acids, demonstrating his expertise and creativity in chemical processes.

Latest Patents

One of Roscher's latest patents focuses on a process for preparing vinyl-phosphonic acids. The invention involves heating 2-chloroethylphosphonic acids under specified conditions to produce vinyl-phosphonic acids effectively. This innovative process eliminates hydrogen chloride and potentially water, operating under atmospheric or reduced pressure to achieve the desired outcomes. Such advancements highlight Roscher’s commitment to improving chemical preparation techniques and introducing non-toxic alternatives to existing products.

Career Highlights

Throughout his career, Gunter Roscher has been affiliated with several distinguished companies. He has worked at Hoechst Aktiengesellschaft and Wacker-Chemie GmbH, where he applied his expertise in chemical research and development. His contributions to these organizations have fostered innovation and paved the way for new chemical compounds and processes.

Collaborations

Collaboration has been a cornerstone of Roscher's career. He has had the opportunity to work alongside esteemed colleagues, including Friedrich Wunder and Klaus Eichler. These partnerships have facilitated the exchange of ideas and knowledge, leading to further advancements in their respective fields.

Conclusion

Gunter Roscher's extensive work and innovative patents have positioned him as a significant figure in the realm of chemical inventions. His latest developments, especially in the preparation of vinyl-phosphonic acids, underscore his dedication to enhancing chemical processes and sustainability within the industry. With a rich history of collaboration and professional accomplishments, Roscher continues to inspire future generations of inventors and researchers.

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