Company Filing History:

14 out of 10,754

Basf Aktiengesellschaft

Years Active: 1980-2009

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7547807 - Method for producing phosphonium salts (2009-06-16),

2. 6784303 - Method for continuously acylating chromanol ester derivatives (2004-08-31),

3. 6554965 - Rectification column for isolating pure substances from high boiling air-and/or temperature sensitive substances (2003-04-29),

4. 6365758 - Preparation of tocopheral carboxylates or tocotrienyl esters by acid-catalyzed reaction with carboxylic acids (2002-04-02),

5. 6111117 - Process for isolation of pure substances from mixtures of high-boiling (2000-08-29),

6. 6005122 - Preparation of .alpha.-tocopherol or .alpha.-tocopheryl acetate by (1999-12-21),

7. 5950454 - Cloth or cloth-like packing which is subject to low pressure losses and (1999-09-14),

8. 5041572 - Preparation of 2,3,5-trimethyl-p-benzoquinone (1991-08-20),

9. 4820874 - Increasing the yield of 2.5.6-trimethylcyclohex-2-en-1-one (1989-04-11),

10. 4600799 - Preparation of trimethylhydroquinone (1986-07-15),

11. 4562277 - Process for the preparation of a (1985-12-31),

12. 4538009 - Preparation of substituted phenols (1985-08-27),

13. 4301084 - Process for the preparation of carboxylic acid esters of (1981-11-17),

14. 4255333 - Preparation of indolenines (1981-03-10),

15. 4240963 - Preparation of indolenines (1980-12-23),

Title: Innovations and Contributions of Harald Laas

Introduction

Harald Laas is a notable inventor based in Maxdorf, Germany, recognized for his significant contributions to the field of chemistry. With a total of 15 patents to his name, Laas has made remarkable advancements in the production of various chemical compounds.

Latest Patents

Among his latest patents is a method for producing phosphonium salts. This invention relates to a process for preparing quaternary phosphonium salts by reacting a ternary phosphine with an optionally substituted, saturated or monounsaturated or polyunsaturated electrophile having from 3 to 25 carbon atoms in ternary solvent mixtures. Another significant patent is for a method of continuously acylating chromanol ester derivatives. This process describes the continuous preparation of chromanol ester derivatives, particularly carboxylic esters of tocopherols and tocotrienols, through continuous acylation with carboxylic acids or carboxylic anhydrides.

Career Highlights

Throughout his career, Laas has worked with prominent companies such as BASF Aktiengesellschaft and BASF SE Corporation. His work in these organizations has allowed him to develop and refine his innovative techniques in chemical production.

Collaborations

Laas has collaborated with esteemed colleagues, including Bernhard Bockstiegel and Wulf Kaiser, contributing to a rich exchange of ideas and advancements in their field.

Conclusion

Harald Laas stands out as a significant figure in the realm of chemical innovation, with a strong portfolio of patents that reflect his expertise and dedication to advancing chemical processes. His contributions continue to influence the industry and inspire future innovations.

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