ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,509, issued on Aug. 12, was assigned to LTS LOHMANN THERAPIE-SYSTEME AG (Andernach, Germany).
"Transdermal delivery system including an emulsifier" was invented by Gabriel Wauer (Bad Neuenahr-Ahrweiler, Germany) and Frank Seibertz (Bad Breisig, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a transdermal therapeutic system (TTS) comprising an active agent-containing layer structure comprising A) a backing layer and B) a biphasic matrix layer, the biphasic matrix layer having a) a continuous, outer phase having a composition comprising 70 to 100% by weight of at least one polymer, b) a discontinuous, inner pha...