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.:

US 7572489 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 11, 2009

Filed:

Jul. 24, 2003
Applicants:

Stefan Dröschel, Saarbrücken, DE;

Rainer Fislage, St. Wendel, DE;

Inventors:

Stefan Dröschel, Saarbrücken, DE;

Rainer Fislage, St. Wendel, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention concerns a method of immobilizing a polymer hydrogel on the surface of a corresponding polymer substrate, and a polymer substrate that has a polymer hydrogel layer immobilized, at least in areas, on its surface. The invention has applications particularly as a biocompatible hydrogel coating in the field of medical technology, for example as a coating for surfaces coming in contact with blood, as in hemodialysis, and as a coating for urinary catheters, venous catheters, stents and other surfaces.


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