Company Filing History:

16 out of 1,603

Sandoz Gmbh

patents

1 out of 507

Clariant Finance (bvi) Limited

patents

Years Active: 1976-1997

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5679800 - 2-Amino-3,5,disubstituted-4-halothiophenes and processes for the (1997-10-21),

2. 5420254 - Disperse dyes (1995-05-30),

3. 5132411 - Azo compounds having 2,4-disubstituted-3-halothienyl-5-diazo component (1992-07-21),

4. 4889535 - 4-Substituted (1989-12-26),

5. 4874392 - Monoazo dyes having a substituted 1,4-phenylene coupling component (1989-10-17),

6. 4728338 - Mixtures of at least one monoazo compound having a 2-cyano (1988-03-01),

7. 4687842 - Monoazo compounds having an imidazolium-2 group linked through an azo (1987-08-18),

8. 4432770 - Rapid dyeing of polyester fibers with a mixture of disperse dyes (1984-02-21),

9. 4289693 - Azo dyes having a quaternized heterocyclic diazo component radical and (1981-09-15),

10. 4288227 - Basic phenoxazine dyestuffs (1981-09-08),

11. 4247457 - Cationic dyes containing an aryloxy group linked through a bridging (1981-01-27),

12. 4244872 - Coumarin dyestuffs (1981-01-13),

13. 4225490 - Heterocyclyl-azo-phenyl dyes having a cationic group linked through a (1980-09-30),

14. 4085098 - Azo dyes containing a heterocyclic ring having a quaternized nitrogen (1978-04-18),

15. 4072672 - Cationic dyes containing an aryloxy group linked through a bridging (1978-02-07),

Title: Beat Henzi: Innovator in Disperse Dyes and Chemical Compounds

Introduction

Beat Henzi is a notable inventor based in Neuallschwil, Switzerland. He has made significant contributions to the field of chemistry, particularly in the development of compounds used as disperse dyes. With a total of 17 patents to his name, Henzi's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents are the innovative 2-Amino-3,5-disubstituted-4-halothiophenes and processes for compounds of the formula ##STR1##. In these compounds, R, R₁, and R₂ are defined in the specification, while R₃ can be either amino or --N.dbd.N--K, where K represents a coupling component radical. The compounds with R₃ as --N.dbd.N--K are particularly useful as disperse dyes, while those with amino groups serve as intermediates in the synthesis of the former.

Career Highlights

Throughout his career, Beat Henzi has worked with prominent companies in the chemical industry. Notably, he has been associated with Sandoz GmbH and Clariant Finance Limited. His expertise in chemical compounds and dyes has positioned him as a key figure in his field.

Collaborations

Henzi has collaborated with several professionals, including Robert Egli and Berthold Gertisser. These partnerships have contributed to the advancement of his research and the successful development of his patented compounds.

Conclusion

Beat Henzi's contributions to the field of chemistry, particularly in the area of disperse dyes, highlight his innovative spirit and dedication to research. His extensive patent portfolio reflects his commitment to advancing chemical science and technology.

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