Heerlen, Netherlands

Johannes E Claassens

This inventor holds 3 USPTO granted patents. Top assignee: Stamicarbon B.v.. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Johannes E Claassens. Retrieved from https://idiyas.com/inventor/johannes-e-claassens

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1976-1981

Loading Chart...
3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Johannes E Claassens

Introduction

Johannes E Claassens is a notable inventor based in Heerlen, Netherlands. He has made significant contributions to the field of chemistry, particularly in the preparation of various chemical compounds. With a total of 3 patents to his name, Claassens has demonstrated a commitment to innovation and scientific advancement.

Latest Patents

Claassens' latest patents include the "Preparation of delta-keto-esters" and the "Preparation of resorcinol and alkyl-substituted derivatives thereof." The first patent details a method for preparing delta-keto-esters, such as 4-oxopentane-1-carboxylic acid methyl ester, through a reaction involving a ketone and an alpha-beta unsaturated carboxylic acid ester in the presence of a primary amine or a Schiff base. The second patent outlines a process for synthesizing resorcinols, which involves contacting keto esters with a dehydrogenation catalyst at elevated temperatures.

Career Highlights

Claassens is currently associated with Stamicarbon B.V., a company known for its innovative solutions in the field of chemical engineering. His work has contributed to advancements in chemical processes and product development, showcasing his expertise and dedication to the industry.

Collaborations

Throughout his career, Claassens has collaborated with esteemed colleagues such as Sijbrandus E Schaafsma and Egidius J Verheijen. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Johannes E Claassens is a distinguished inventor whose contributions to chemical innovation are noteworthy. His patents reflect a deep understanding of chemical processes and a commitment to advancing the field. Claassens continues to inspire future generations of inventors and scientists.

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]
Loading…