Patent · US Active

Therapeutic system containing an active substance for the application on the skin which contains at least two polymerous layers

US7335378B2 · kind B2 · utility

0Cited by

7References

8Claims

0Family size

Assignee

LTS Lohmann Therapie-Systeme AG · DE

Inventor

Achim Berthold · Andernach, DE

Key dates

Filing date	Nov 18, 2004
Grant date	Feb 26, 2008
Priority date	—
Expiry date	Aug 2, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2556/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Active substance-containing therapeutic system for application on the skin, comprising at least two polymer-containing layers, characterized in that the-polymers used for the different layers differ in their glass transition temperature (see FIG. 1).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.