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. 20, 2002
Filed:
Oct. 20, 1999
Applicant:
Inventor:
Walter Müller, Neuwied, DE;
Assignee:
LTS Lohmann Therapie-Systeme AG, Andernach, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 1/302 ; A61F 1/300 ;
U.S. Cl.
CPC ...
A61F 1/302 ; A61F 1/300 ;
Abstract
A transdermal or topical plaster system with a backing layer, with an active ingredient-containing and self-adhesive matrix based on crosslinkable polyacrylate as base polymer and with a removable protecting film is characterized by an at least two-layer matrix with a degree of crosslinking of the layer facing the skin which is appropriate for adequate adhesion to the skin thereof and is lower than the degree of crosslinking of the layer or layers on top thereof.