Moers, Germany

Gunter Droll, Jr

This inventor holds 1 USPTO granted patent. Top assignee: Bergwerksverband Gmbh. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Gunter Droll, Jr. Retrieved from https://idiyas.com/inventor/gunter-droll-jr

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Gunter Droll, Jr: Innovator in Catalytic Processes

Introduction

Gunter Droll, Jr. is a notable inventor based in Moers, Germany. He has made significant contributions to the field of chemical engineering, particularly in the development of processes for the manufacture of anthraquinone. His innovative approach has led to the creation of a patented method that enhances production efficiency and purity.

Latest Patents

Gunter Droll, Jr. holds a patent for a catalytic oxidative process for the manufacture of anthraquinone. This process involves the oxidation of o-benzyl-toluene with air or an oxygen-containing gas in an acetic acid solution. The method utilizes cobalt, manganese, and bromine salts as catalysts, with the addition of acetic anhydride to maintain constant acid concentration. The resulting crude o-benzoyl-benzoic acid is then esterified with methanol, distilled, and treated with concentrated sulfuric acid to yield anthraquinone in good yield and high purity. This patent showcases his expertise in chemical processes and innovation.

Career Highlights

Gunter Droll, Jr. is associated with Bergwerksverband GmbH, where he applies his knowledge and skills in chemical engineering. His work has contributed to advancements in the production of valuable chemical compounds, demonstrating his commitment to innovation in the industry.

Collaborations

Gunter has collaborated with notable colleagues such as Georg Kolling and Clemens Linden. Their teamwork has fostered an environment of creativity and innovation, leading to successful projects and advancements in their field.

Conclusion

Gunter Droll, Jr. is a distinguished inventor whose work in catalytic processes has made a significant impact on the chemical manufacturing industry. His patented method for producing anthraquinone exemplifies his innovative spirit and dedication to advancing chemical engineering.

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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