Company Filing History:

25 out of 6,662

Hoechst Aktiengesellschaft

Aventis Research & Technologies Gmbh & Co Kg

patents

Years Active: 1993-2003

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38 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6645904 - Aminophosphonium compounds (2003-11-11),

2. 6465643 - Aminophosphonium compounds (2002-10-15),

3. 6407029 - Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts (2002-06-18),

4. 6362365 - Preparation of trifluorobenzoic acids (2002-03-26),

5. 6348603 - Process for the preparation of isochroman-3-ones (2002-02-19),

6. 6187952 - Two-step production of 3-chloro-4-fluoro-benzoyl chloride by chlorination (2001-02-13),

7. 6103659 - Catalyst comprising an amidophosphonium salt for halex reactions (2000-08-15),

8. 6075152 - Process for preparing isochroman-3-ones (2000-06-13),

9. 6001831 - Process for producing quinazoline derivatives (1999-12-14),

10. 5973189 - Monoesters of carboxymethylene anthranilic acids and process for (1999-10-26),

11. 5965775 - Process for the preparation of 3,5-difluoroaniline (1999-10-12),

12. 5945556 - Process for preparing N-carboxymethylene-4-chloro-anthranilic acid and (1999-08-31),

13. 5874608 - Process for the preparation of esters of aromatic carboxylic acid (1999-02-23),

14. 5849959 - Derivatives of 2, 3, 6-trifluorophenols and a process for their (1998-12-15),

15. 5773651 - Process for the preparation of fluorine-containing chemical compounds (1998-06-30),

Title: The Innovative Journey of Ralf Pfirmann

Introduction:

Ralf Pfirmann, a visionary inventor hailing from Griesheim, Germany, has made significant contributions to the field of technology with his groundbreaking inventions and patents.

Latest Patents:

Ralf Pfirmann's latest patents showcase his commitment to pushing the boundaries of innovation in various industries, including automotive, electronics, and renewable energy.

Career Highlights:

Throughout his illustrious career, Ralf Pfirmann has been recognized for his inventive spirit and problem-solving skills. His patents have revolutionized the way we approach challenges in the modern world.

Collaborations:

Ralf Pfirmann has collaborated with leading companies, research institutions, and universities to bring his inventions to life. His ability to work across disciplines has led to the development of cutting-edge technologies.

Conclusion:

In conclusion, Ralf Pfirmann's passion for innovation and his dedication to creating a better future through his inventions have solidified his place as a pioneering inventor in the global landscape of technology.

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