Patents by Inventor Sonja Rak

Sonja Rak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TRANSDERMAL THERAPEUTIC SYSTEM FOR ADMINISTERING FENTANYL OR AN ANALOGUE THEREOF
    Publication number: 20140330223
    Abstract: According to the invention a transdermal therapeutic system for administering fentanyl or an analogue thereof through the skin is provided that has a pressure-sensitive adhesive matrix layer containing a mixture of two polyisobutylenes with specific storage moduli.
    Type: Application
    Filed: November 22, 2012
    Publication date: November 6, 2014
    Inventors: Björn Schurad, Sonja Rak