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For the Inventor, By the Inventor

Hofheim am Taunus, Germany

Dieter Freudenberger

This inventor holds 7 USPTO granted patents. Top assignee: Hoechst Aktiengesellschaft. Active years: 1976-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dieter Freudenberger. Retrieved from https://idiyas.com/inventor/dieter-freudenberger

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 5

Forward Citations = 84(Granted Patents)


Location History:

  • Diedenbergen, Taunus, DE (1976)
  • Hofheim, Taunus, DE (1976 - 1978)
  • Diedenbergen, DE (1979)
  • Hofheim am Taunus, DE (1980 - 1988)

Company Filing History:

goldMedal7 out of 6,705 
 
Hoechst Aktiengesellschaft
 patents

Years Active: 1976-1988

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7 patents (USPTO):Explore Patents
1. 4720577 - Process for the extraction of carboxylic acids from dilute aqueous (1988-01-19),
2. 4235790 - Process for separating p-benzoquinone from the reaction products of (1980-11-25),
3. 4214106 - Process for the preparation of ethylene glycol (1980-07-22),
4. 4140865 - Process for the manufacture of vinyl acetic acid (1979-02-20),
5. 4096156 - Process for the catalytic manufacture of .gamma.-butyrolactone (1978-06-20),
6. 3980671 - Process for the manufacture of vinyl acetic acid and optionally of .gamma.- (1976-09-14),
7. 3935274 - Process for the continuous preparation of hydroxypivaldehyde (1976-01-27),

Title: Dieter Freudenberger: Innovator in Chemical Processes

Introduction

Dieter Freudenberger is a notable inventor based in Hofheim am Taunus, Germany. He has made significant contributions to the field of chemical engineering, particularly in the extraction and separation of various compounds. With a total of 7 patents to his name, Freudenberger's work has had a lasting impact on industrial processes.

Latest Patents

Freudenberger's latest patents include a process for the extraction of carboxylic acids from dilute aqueous solutions. This innovative method utilizes a mixture of an aliphatic amine and a phenol or naphthol as an extracting agent. The specific molar ratio of these components is carefully controlled to optimize the extraction process. Another significant patent involves the separation of p-benzoquinone from the reaction products of phenol oxidation. This process effectively precipitates p-benzoquinone as quinhydrone, allowing for its separation from the reaction solution.

Career Highlights

Dieter Freudenberger has had a distinguished career, working with Hoechst Aktiengesellschaft, a leading company in the chemical industry. His expertise in chemical processes has led to advancements that enhance efficiency and effectiveness in various applications. His innovative approaches have positioned him as a key figure in his field.

Collaborations

Freudenberger has collaborated with esteemed colleagues such as Hans Fernholz and Friedrich Wunder. These partnerships have fostered a creative environment that has contributed to the development of groundbreaking technologies.

Conclusion

Dieter Freudenberger's contributions to chemical engineering through his patents and collaborations highlight his role as an influential inventor. His work continues to inspire advancements in the industry, showcasing the importance of innovation in scientific research.

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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