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:
Dec. 30, 1997
Filed:
Aug. 30, 1994
Applicant:
Inventors:
Michael Horstmann, Neuwied, DE;
Fritz Herrmann, Neuwied, DE;
Assignee:
LTS Lohmann Therapie-Systeme GmbH & Co. KG, Neuwied, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61L / ;
U.S. Cl.
CPC ...
424449 ; 424443 ; 5147722 ; 5147723 ; 514785 ; 514786 ; 514953 ; 427-231 ;
Abstract
A transdermal therapeutic system exhibiting layered structure consists of a backing layer which is impermeable to active substances, a matrix having water-insoluble basic material and islands (inclusions) divided therein, and a layer controlling the access of cutaneous liquid by means of which the matrix is activatable. Process for the production are described.