Duelmen, Germany

Stefan Drees

This inventor holds 1 USPTO granted patent and 6 EPO patents. Top assignee: Evonik Oxeno Gmbh & Co. Kg. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stefan Drees. Retrieved from https://idiyas.com/inventor/stefan-drees-45niimlx

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


% Patents Active = 100.0

 

Average Co-Inventor Count = 7.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Stefan Drees

Introduction

Stefan Drees is a notable inventor based in Dülmen, Germany. He has made significant contributions to the field of membrane technology, particularly in the area of organophilic nanofiltration. His innovative approach has led to advancements in the continuous removal of components from liquid mixtures.

Latest Patents

Stefan Drees holds a patent for a method titled "Variable, self-regulating permeate recycling in organophilic nanofiltration." This invention provides an improvement in control and process technology for a method of continuous removal of a component from a liquid mixture using a membrane unit. The key improvement involves recycling a portion of the overall permeate stream back to the feed vessel, enhancing the efficiency of the separation process. This method is particularly useful for separating a homogeneously dissolved catalyst from a liquid reaction mixture. He has 1 patent to his name.

Career Highlights

Throughout his career, Stefan Drees has worked with prominent companies in the chemical industry. He has been associated with Evonik Oxeno GmbH & Co. KG and Evonik Degussa GmbH, where he has contributed to various innovative projects and advancements in technology.

Collaborations

Stefan has collaborated with notable colleagues such as Thomas Quell and Johannes Knossalla. Their combined expertise has fostered a productive environment for innovation and development in their respective fields.

Conclusion

Stefan Drees exemplifies the spirit of innovation through his contributions to membrane technology and organophilic nanofiltration. His work continues to influence advancements in the industry, showcasing the importance of inventive thinking in solving complex challenges.

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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