Company Filing History:

25 out of 10,754

Basf Aktiengesellschaft

Years Active: 1978-2006

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7002023 - Method for producing 1 substituted 5-chloro-4 methly pyrazoles (2006-02-21),

2. 6867326 - Method of producing glyphosate or a salt thereof (2005-03-15),

3. 6538135 - Method for producing 4-amino-5-chloro-1-phenyl pyridazinone-(6) (2003-03-25),

4. 6515139 - Method for producing N-substituted 2-pyrazoline-5-one (2003-02-04),

5. 6252069 - Method for the production of 3-isopropyl-1H-2, 1,3-benzothiadiazine-4 (3H)-one-2,2-dioxide (2001-06-26),

6. 6229022 - Method for producing substituted pyrazoles (2001-05-08),

7. 6066761 - Method for isolating 3-[2-chloro-4-(trifluoromethyl)-phenoxy]-benzoic (2000-05-23),

8. 5939584 - Process for preparing solid, free-flowing water-soluble salts of (1999-08-17),

9. 5847154 - Method of preparing 1,2-dimethyl-3,5-diarylpyrazolium methylsulfates (1998-12-08),

10. 5840913 - Process for preparing N-substituted pyrazoles (1998-11-24),

11. 5795983 - Preparation of ammonium salts of 3-isopropyl-2, 1, (1998-08-18),

12. 5763659 - Preparation of optically active 2-halopropionic acids (1998-06-09),

13. 5744614 - Preparation of 3,5-diarylpyrazoles (1998-04-28),

14. 5569769 - Preparation of pyrazole and its derivatives (1996-10-29),

15. 5468871 - Preparation of N-substituted pyrazoles (1995-11-21),

Title: Innovations and Contributions of Hans Rupert Merkle

Introduction

Hans Rupert Merkle, an esteemed inventor from Ludwigshafen, Germany, holds an impressive portfolio of 26 patents. His contributions to the field of chemical processes and materials have had significant implications in various industries, particularly in agricultural chemicals and pharmaceutical development.

Latest Patents

Among his latest innovations, Merkle patented a method for producing 1-substituted 5-chloro-4-methylpyrazoles. This invention outlines a process where a 4-methylpyrazole is reacted with chlorine, resulting in a mixture that undergoes fractionation by distillation. The dichlorinated compound is then dehalogenated and returned to the reaction with chlorine, providing a novel approach to synthesizing these chemical compounds.

Another notable patent is the method for producing glyphosate, or a salt thereof. In this process, N-phosphonomethylglycine is prepared by introducing phosphonomethyliminodiacetic acid into contact with an oxygen-containing oxidant in the presence of a heterogeneous catalyst, which includes at least one silicate. This innovative method enhances the efficiency of glyphosate production.

Career Highlights

Merkle's professional journey includes pivotal positions at BASF Aktiengesellschaft and BASF Corporation. His work in these companies allowed him to apply his innovative ideas and collaborate on groundbreaking projects that have shaped current standards in chemical manufacturing.

Collaborations

Throughout his career, Hans Rupert Merkle collaborated with accomplished professionals such as Erich Fretschner and Albrecht Mueller. These collaborations have fostered an environment of creativity and innovation, leading to the successful development of several patents and advancements in their respective fields.

Conclusion

Hans Rupert Merkle's contributions through his patents and collaborations reflect his dedication to innovation in chemical processes. His work not only highlights the importance of research and development in industry practices but also sets a benchmark for future inventors striving to create impactful solutions.

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