Sassenheim, Netherlands

Rienk Hettema

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Akzo Nobel Coatings International B.v.. Active years: 2010-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rienk Hettema. Retrieved from https://idiyas.com/inventor/rienk-hettema

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 = 5.1

ph-index = 2

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 2010-2011

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2 patents (USPTO):Explore Patents

Title: Rienk Hettema: Innovator in Polyurethane Technology

Introduction

Rienk Hettema is a notable inventor based in Sassenheim, Netherlands. He has made significant contributions to the field of polyurethane technology, holding a total of 2 patents. His work focuses on developing innovative materials that enhance the performance and application of dispersant resins.

Latest Patents

Hettema's latest patents include a polyurethane dispersant resin and a solid pigment preparation. The polyurethane dispersant resin features a polyurethane backbone with pendant hydrophilic polyalkylene oxide-based side groups. These side groups are covalently bonded to the backbone, with a polyalkylene oxide content of at least 45% by weight. Additionally, this resin incorporates pendant hydrophobic side groups, also linked via covalent bonds. His second patent, the pigment preparation, consists of at least 35% by weight of pigments and a maximum of 65% by weight of a dispersant resin. This dispersant resin has a polyester backbone with at least one pendent hydrophilic polyalkylene oxide monoalkylether group, containing 30 to 80% by weight of alkylene oxide units and a number average molecular weight ranging from 1,000 to 150,000.

Career Highlights

Rienk Hettema is associated with Akzo Nobel Coatings International B.V., a leading company in the coatings industry. His work at Akzo Nobel has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in coating technologies.

Collaborations

Throughout his career, Hettema has collaborated with notable colleagues, including Hendrik Meijer and Roelof Buter. These collaborations have fostered a creative environment that encourages the development of cutting-edge solutions in the field of coatings.

Conclusion

Rienk Hettema's contributions to polyurethane technology and his innovative patents highlight his role as a significant inventor in the coatings industry. His work continues to influence advancements in material science and application.

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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