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:
May. 19, 2020
Filed:
Apr. 08, 2004
Stefan Bracht, Cospeda, DE;
Stefan Bracht, Cospeda, DE;
LTS Lohmann Therapie-Systeme AG, Andernach, DE;
Abstract
A medical active substance patch comprising a matrix of monolayer or multilayer configuration with at least one active substance-containing layer and comprising a backing layer connected with the matrix. The active substance patch is transparent or at least translucent, and in the state of having been applied to the skin of a first person, the patch has a lightness colour value Lat a place of the skin covered by the patch which is not less than 50% and not more than 200% of a lightness colour value L, Lbeing the lightness value of the region of the skin of the same person which surrounds the applied patch. The same is true of the skin of a second or any other person, provided that for all the persons mentioned Lis in the range from 5° to 100°, namely from 20° to 90°.