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Leverkusen, Germany

Alfons Dorlars

USPTO Granted Patents = 13

Average Co-Inventor Count = 2.3

ph-index = 4

Forward Citations = 27(Granted Patents)


Company Filing History:

goldMedal13 out of 12,157 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1986

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13 patents (USPTO):Explore Patents
1. 4609756 - Process for the preparation of optionally substituted cinnamic acid in (1986-09-02),
2. 4347357 - Process for the preparation of v-triazole compounds (1982-08-31),
3. 4329458 - Process for the preparation of 2,4,6-trifluoro-1,3,5-triazine (1982-05-11),
4. 4263435 - 6 (1981-04-21),
5. 4233440 - Triazolyl-stilbenes (1980-11-11),
6. 4229579 - 3-(Halopyrazolyl)-7-triazolyl-coumarin compounds (1980-10-21),
7. 4217449 - Process for the preparation of bis-triazolylstilbenes (1980-08-12),
8. 4161593 - Process for the preparation of triazines containing a mixture of (1979-07-17),
9. 4144243 - 3-Pyrozolyl-4-triazolyl compounds (1979-03-13),
10. 4005098 - Triazolyl-coumarins (1977-01-25),
11. 3994834 - Triazolyl stilbene brighteners method of preparing and detergents (1976-11-30),
12. 3962219 - Optical brighteners (1976-06-08),
13. 3957817 - 3-Aryl-7-pyrazolyl-coumarins (1976-05-18),

Title: The Innovative Contributions of Alfons Dorlars

Introduction

Alfons Dorlars is a notable inventor based in Leverkusen, Germany. He has made significant contributions to the field of chemistry, particularly in the development of processes for synthesizing various chemical compounds. With a total of 13 patents to his name, Dorlars has established himself as a key figure in his industry.

Latest Patents

Dorlars' latest patents include a process for the preparation of optionally substituted cinnamic acid. This innovative method involves reacting the corresponding benzaldehyde with ketene in the presence of a catalyst, specifically an iron and/or zinc salt of a mono- or di-carboxylic acid. The process also includes splitting the reaction product at temperatures ranging from 100°C to 250°C using an acid or basic catalyst. Another significant patent is for the preparation of v-triazole compounds. This process yields water-soluble 2-aryl-v-triazoles in surprisingly good yields by heating corresponding α-oximinoarylhydrazones in water or predominantly aqueous media without the need for customary cyclizing agents. The resulting compounds serve as valuable UV-absorbers or optical brighteners.

Career Highlights

Dorlars is currently employed at Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His work at Bayer has allowed him to focus on innovative chemical processes that have practical applications in various industries.

Collaborations

Throughout his career, Dorlars has collaborated with esteemed colleagues such as Otto Neuner and Carl-Wolfgang Schellhammer. These collaborations have further enhanced his research and development efforts, leading to impactful innovations.

Conclusion

Alfons Dorlars is a distinguished inventor whose work has significantly advanced the field of chemistry. His innovative processes and collaborations have contributed to the development of valuable chemical compounds, showcasing his expertise and dedication to scientific progress.

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