Veszprém, Hungary

Istvan Szigeti

This inventor holds 1 USPTO granted patent. Top assignee: Nitrokemia Ipartelepek. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Istvan Szigeti. Retrieved from https://idiyas.com/inventor/istvan-szigeti

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 = 5.0

ph-index = 1

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Istvan Szigeti: Inventor in Polyester Resin Chemistry.

Introduction

Istvan Szigeti is an inventor associated with Veszprém, Hungary, and Nitrokémia Ipartelepek. His patent work concerns a method for preparing unsaturated polyester resins.

Latest Patents

Szigeti is associated with 1 patent, titled “Method of Preparation of Unsaturated Polyester Resins from Maleic.” The invention describes accelerating the synthesis of unsaturated polyesters containing maleic acid or anhydride. It introduces 1 to 30 percent of the prescribed maleic acid or anhydride into the reaction mixture, either at once or in multiple increments, after the mixture reaches a specified acid number or molecular weight. This approach can substantially increase the rate of polyesterification and enable the preparation of resins with a very low acid number or high molecular weight.

Career Highlights

Szigeti’s patent reflects work on improving the efficiency and outcomes of polyester resin synthesis. The disclosed method focuses on controlling when maleic acid or anhydride is added during the reaction.

Collaborations

His listed coworkers include Laszlo Szommer and Akos Bodnar. The patent is associated with Nitrokémia Ipartelepek.

Conclusion

Istvan Szigeti’s recorded invention addresses a practical improvement in unsaturated polyester resin production by accelerating polyesterification and supporting the preparation of resins with desired properties.

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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