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:
Jul. 16, 2013
Filed:
Feb. 04, 2004
Jochen Schuhmacher, Bucha, DE;
Manfred Suesse, Langenorla, DE;
Michael Dittgen, Apolda, DE;
Stephan Mletzko, Berlin, DE;
Jan-peter Ingwersen, Berlin, DE;
Thomas Langguth, Jena, DE;
Dirk Schenk, Dietramszell, DE;
Hubert Kaffl, Fischbachau, DE;
Jochen Schuhmacher, Bucha, DE;
Manfred Suesse, Langenorla, DE;
Michael Dittgen, Apolda, DE;
Stephan Mletzko, Berlin, DE;
Jan-Peter Ingwersen, Berlin, DE;
Thomas Langguth, Jena, DE;
Dirk Schenk, Dietramszell, DE;
Hubert Kaffl, Fischbachau, DE;
Bayer IP GmbH, Berlin, DE;
Abstract
The invention relates to a UV stable transdermal therapeutic system (TTS) consisting of a back layer, at least one matrix containing an active substance and, optionally, a withdrawal film and an UV-radiation absorber. An adhesive layer containing said UV-radiation absorber is arranged between the back layer and the matrix containing an active substance which is distant as much as possible from a surface, a separation layer is arranged between the adhesive layer containing said UV-radiation absorber and the matrix containing an active substance, which is as remote as possible from the surface which is impermeable to the active substance and UV radiation absorber. The inventive transdermal therapeutic system exhibits a high stability and is devoid of inconveniences of existing TTS containing a light-sensitive substance.