This inventor holds 4 USPTO granted patents. Top assignees: Centre National De La Recherche Scientifique, Institut National De Recherche Chimique Appliquee Ircha, Lyonnaise Des Eaux. Active years: 1989-1992.
Company Filing History:
1 out of 5,383 
1 out of 4 
1 out of 11 Years Active: 1989-1992
Title: Inventor Philippe Aptel: Innovations in Semi-Permeable Membrane Technology
Introduction
Philippe Aptel, an inventor based in Toulouse, France, has made significant contributions to the field of materials science, particularly in the production of semi-permeable membranes. With a portfolio that includes four patents, Aptel has established himself as a prominent figure in the innovation landscape.
Latest Patents
Philippe Aptel holds several notable patents, among which are two ingenious methods for producing semi-permeable membranes. The first patent is titled "Process for extruding semi-permeable membrane having separate hollow." This innovation outlines a detailed procedure for creating a porous organic material equipped with multiple passageways. The process involves dissolving a polymer in a solvent and utilizing a drawplate with needles that are specifically shaped to match the passageways. Critical parameters, such as viscosity and extrusion speed, are meticulously described to ensure the quality of the extrudate.
His second patent, "Process for producing a semi-permeable membrane by extrusion," further advances the techniques behind membrane fabrication. Similar in its core methodology, this patented process emphasizes the precise dimensions and conditions required for successful extrusion. By employing a centering fluid and ensuring adequate travel distances in a precipitating medium, Aptel's invention aims to enhance membrane quality and performance.
Career Highlights
Philippe Aptel's career includes influential positions at esteemed organizations such as the Institut National de Recherche Chimique Appliquée (IRCHA) and the Centre National de la Recherche Scientifique (CNRS). His work in these institutions has been instrumental in pushing the boundaries of research in chemical engineering and material sciences.
Collaborations
Throughout his career, Aptel has collaborated with notable colleagues, including Jean-Michel Espenan and Jun Kong Liou. These partnerships have fostered a rich environment for innovation, allowing for the exchange of ideas and development of cutting-edge technologies.
Conclusion
Philippe Aptel is a distinguished inventor whose work in the development of semi-permeable membranes has the potential to revolutionize various applications in filtration and separation technologies. His patents not only highlight his technical expertise but also his dedication to advancing the field. As innovations continue to emerge, Aptel's contributions will undoubtedly play a significant role in shaping the future of materials science.