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:
Aug. 21, 2001
Filed:
Oct. 01, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 1/302 ; A61F 1/300 ; A61L 1/516 ;
U.S. Cl.
CPC ...
A61F 1/302 ; A61F 1/300 ; A61L 1/516 ;
Abstract
An active ingredient-containing transdermal therapeutic system with a nonadhesive backing layer, with an active ingredient-containing reservoir layer and with a self-adhesive surface facing the skin, where appropriate with redetachable protecting layer, is characterized by an elastic or plastically extensible diffusible backing layer with a metal layer which acts as permeability barrier for auxiliaries and active ingredients in the reservoir layer and is formed by film growth, in particular a metallization layer.