Amsterdam, Netherlands

Madeline G Van Grieken

This inventor holds 1 USPTO granted patent. Top assignee: Shell Oil Comapny. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Madeline G Van Grieken. Retrieved from https://idiyas.com/inventor/madeline-g-van-grieken

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 = 19(Granted Patents)


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Madeline G. Van Grieken: Inventor in Lubricant Chemistry.

Introduction

Madeline G. Van Grieken is an inventor associated with Amsterdam, the Netherlands. Her patent work concerns lubricant chemistry and additives designed to improve the performance of engine oils.

Latest Patents

The supplied information lists one patent for Van Grieken: “Borated Basic Metal Salt and Lubricating Oil Composition.” The invention describes an oil-soluble reaction product made from an oil-soluble basic alkaline-earth metal salt of an organic acid, particularly an aromatic carboxylic acid, and a boron compound, particularly boric acid. The product is described as providing detergent, anti-wear, and anti-corrosion properties in engine oils. The listed patent count is 1 patent.

Career Highlights

Van Grieken’s listed work is associated with Shell Oil Company. Her patent reflects research into lubricant additives intended to support engine cleanliness and protect engine components from wear and corrosion.

Collaborations

The supplied information names Jan J. Bleeker and Wilhelmus J. Krijnen as Van Grieken’s coworkers. Their names are associated with her professional context, though the information provided does not specify their roles in the patent.

Conclusion

Madeline G. Van Grieken’s listed patent documents an approach to improving engine-oil performance through a borated metal-salt additive, highlighting her contribution to lubricant innovation.

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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