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For the Inventor, By the Inventor

Krefeld, Germany

Bernd-Ulrich Kaiser

This inventor holds 10 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1977-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Bernd-Ulrich Kaiser. Retrieved from https://idiyas.com/inventor/bernd-ulrich-kaiser

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 37(Granted Patents)


Location History:

  • Krefeld, DE (1977 - 1979)
  • both Krefeld, DE (1980)

Company Filing History:

goldMedal10 out of 12,266 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1977-1980

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10 patents (USPTO):Explore Patents
1. 4239682 - Purification of caprolactam (1980-12-16),
2. 4170592 - Purification of .epsilon.-caprolactam (1979-10-09),
3. 4157986 - Abrasion resistant catalyst (1979-06-12),
4. 4155876 - Catalyst regeneration of boric acid on carbon catalysts (1979-05-22),
5. 4148793 - Process for the purification of epsilon-caprolactam (1979-04-10),
6. 4148792 - Purification of caprolactam (1979-04-10),
7. 4141896 - Process for the producing .epsilon.-caprolactam from the distillation of (1979-02-27),
8. 4137263 - Process for the evaporation of cyclohexanone oxime (1979-01-30),
9. 4042547 - Environmentally harmless stoving lacquer systems based on alkyd resins (1977-08-16),
10. 4014708 - Liquid stoving-lacquer systems based on oil-free polyesters (1977-03-29),

Title: Bernd-Ulrich Kaiser: Innovator in Caprolactam Purification

Introduction

Bernd-Ulrich Kaiser is a notable inventor based in Krefeld, Germany. He has made significant contributions to the field of chemical engineering, particularly in the purification processes of caprolactam. With a total of 10 patents to his name, his work has had a considerable impact on the industry.

Latest Patents

Kaiser’s latest patents include innovative processes for the purification of caprolactam. One of his notable inventions is a method for purifying acid-containing crude caprolactam obtained from the rearrangement of cyclohexanone oxime. This process involves mixing the crude caprolactam with a base, toluene, and water, followed by separating the mixture into distinct phases to eliminate contaminants. Another significant patent focuses on the purification of .epsilon.-caprolactam using a washing solution that allows for multiple washing stages to readjust the equilibrium between the solutions.

Career Highlights

Throughout his career, Bernd-Ulrich Kaiser has been associated with Bayer Aktiengesellschaft, a leading company in the chemical industry. His work has not only advanced the purification techniques for caprolactam but has also contributed to the overall efficiency and effectiveness of chemical processes within the company.

Collaborations

Kaiser has collaborated with esteemed colleagues such as Harry Danziger and Otto Immel. These partnerships have fostered a productive environment for innovation and have led to the development of several key patents in the field.

Conclusion

Bernd-Ulrich Kaiser stands out as a prominent inventor in the realm of caprolactam purification. His contributions have significantly advanced the chemical engineering field, showcasing the importance of innovation in industrial processes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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