The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2009
Filed:
Jan. 16, 2004
Wolfgang Albrecht, Teltow, DE;
Dieter Paul, Kleimachnow, DE;
Roland Hilke, Teltow, DE;
Barbara Seifert, Berlin, DE;
Thomas Weigel, Wilhelmshorst, DE;
Thomas Groth, Berlin, DE;
Wolfgang Albrecht, Teltow, DE;
Dieter Paul, Kleimachnow, DE;
Roland Hilke, Teltow, DE;
Barbara Seifert, Berlin, DE;
Thomas Weigel, Wilhelmshorst, DE;
Thomas Groth, Berlin, DE;
GKSS Forschungszentrum Geesthacht GmbH, Geesthacht, DE;
Abstract
In a method of manufacturing a double-layer membrane of different polymers or polymer mixtures with opposite blood-compatible and tissue-compatible surfaces, a first polymer solution of a blood-compatible polymer and a second solution of a tissue-compatible polymer are extruded concurrently in layered form through a nozzle into a coagulation bath so as to form a double layer membrane.