Toulouse, France

Jean-Michel Espenan

This inventor holds 6 USPTO granted patents. Top assignees: Lyonnaise Des Eaux, Centre National De La Recherche Scientifique, Institut National De Recherche Chimique Appliquee Ircha. Active years: 1989-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jean-Michel Espenan. Retrieved from https://idiyas.com/inventor/jean-michel-espenan

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 = 1.3

ph-index = 4

Forward Citations = 140(Granted Patents)


Company Filing History:


Years Active: 1989-1992

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6 patents (USPTO):Explore Patents

Title: Innovative Contributions of Inventor Jean-Michel Espenan

Introduction

Jean-Michel Espenan, an accomplished inventor based in Toulouse, France, has made significant contributions to the field of material science with a focus on semi-permeable membranes. With a remarkable portfolio of six patents, his work is revolutionizing processes related to organic material production.

Latest Patents

Among his recent innovations, Jean-Michel Espenan has developed two notable patents. The first is a comprehensive process for extruding semi-permeable membrane having separate hollow passageways. This intricate process involves dissolving a polymer in a solvent and utilizing a specially designed drawplate with needles and an extrusion orifice that is conjugate in shape with the passageways. The method also incorporates a centering fluid that helps precipitate the polymeric solution, leading to the successful production of a porous organic material.

The second patented process is focused on the production of a semi-permeable membrane by extrusion. This method similarly involves the use of a drawplate and a careful manipulation of fluid dynamics to ensure optimal conditions for membrane formation. Both patents emphasize the precision required in manufacturing to achieve desired results in membrane characteristics, showcasing Espenan's expertise in this advanced technology.

Career Highlights

Throughout his career, Jean-Michel has worked with several esteemed organizations. Notably, he has been associated with Lyonnaise des Eaux, which has allowed him to explore innovative approaches to materials within water management. Additionally, during his tenure at the Institut National De Recherche Chimique Appliquée (Ircha), he honed his research skills and expanded his knowledge in chemical applications. His dedication and focus on enhancing material processes have earned him recognition in scientific and industrial circles.

Collaborations

Collaboration has played a vital role in Jean-Michel Espenan's career. He has closely worked with Philippe Aptel, a fellow innovator, to further explore advancements in materials and engineering processes. Their combined expertise reflects the importance of teamwork in fostering innovation and pushing the boundaries of what is possible in the realm of semi-permeable membranes.

Conclusion

Jean-Michel Espenan's inventive spirit and dedication to improving material processes have made a substantial impact on the field of membrane technologies. With his latest patents highlighting innovative techniques in the production of semi-permeable membranes, he continues to push the boundaries of innovation. As research and development in this area advance, his contributions are sure to pave the way for future breakthroughs.

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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