Philippe Aptel

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Toulouse, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for extruding semi-permeable membrane having separate hollo...
- Patent number 5,171,493
- Issue date Dec 15, 1992
- Societe Lyonnaise des Eaux (Societe Anonyme)
- Philippe Aptel
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for producing a semi-permeable membrane by extrusion
- Patent number 5,089,187
- Issue date Feb 18, 1992
- Societe Lyonnaise des Eaux, S.A.
- Philippe Aptel
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method of fabricating a perforated plate for a hollow fiber separat...
- Patent number 4,917,798
- Issue date Apr 17, 1990
- Lyonnaise des Eaux
- Jun K. Liou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hollow fibers production method thereof and their applications part...
- Patent number 4,882,223
- Issue date Nov 21, 1989
- Institut National de Recherche Chimique Appliquee (IRCHA)
- Philippe Aptel
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Patents Applicationslast 30 patents

Information Patent Application
Method for making a nanofiltration membrane, and resulting membrane
- Publication number 20020161066
- Publication date Oct 31, 2002
- Jean-Christophe Remigy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL