Scheemda, Netherlands

Douwe Marten Kok

This inventor holds 7 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Acheson Industries, Inc., Henkel Ag & Company, Kgaa. Active years: 2000-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douwe Marten Kok. Retrieved from https://idiyas.com/inventor/douwe-marten-kok

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

USPTO Granted Patents = 7 

% Patents Active = 85.7


Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 2000-2019

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7 patents (USPTO):Explore Patents

Title: Douwe Marten Kok: Innovator in Silicon Oil Technologies

Introduction

Douwe Marten Kok is a notable inventor based in Scheemda, Netherlands. He has made significant contributions to the field of silicon oil technologies, holding a total of 7 patents. His work primarily focuses on developing innovative solutions for die casting lubricants.

Latest Patents

Kok's latest patents include a "Modified silicon oil for low temperature cure die casting lubricants." This invention involves a mixture of polyalkylsiloxanes that cure at approximately 170°C while remaining unreactive under ambient conditions during storage or transport. The process utilizes a hydrosilylation reaction with a mixture of ethylenically unsaturated olefins and polyalkylhydrosiloxanes in the presence of a hydrosilylation catalyst. Additionally, he has developed water-based compositions suitable for metal casting processes as mold release agents.

Another significant patent is the "Modified silicon oil for wax-free die casting lubricants." This invention also involves a mixture of polyalkylsiloxanes obtained through a hydrosilylation reaction. It includes polyalkylsiloxane with alkyl side chains of varying carbon lengths and water-based compositions that serve as mold release agents, incorporating non-ionic surfactants and minimal wax content.

Career Highlights

Throughout his career, Douwe Marten Kok has worked with reputable companies such as Acheson Industries, Inc. and Henkel AG & Company, Kgaa. His experience in these organizations has contributed to his expertise in the development of advanced silicon oil technologies.

Collaborations

Kok has collaborated with notable professionals in his field, including Hans-Dieter Renkl and Thomas Junker. These partnerships have likely enhanced his innovative capabilities and broadened the impact of his inventions.

Conclusion

Douwe Marten Kok is a distinguished inventor whose work in silicon oil technologies has led to several important patents. His contributions continue to influence the industry, showcasing the importance of innovation in material science.

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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