Patents by Inventor Ingeborg Steinfatt-Hoffmann

Ingeborg Steinfatt-Hoffmann 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).

  • Polyurethane plaster for the transdermal application of active substances, and method for the production thereof
    Patent number: 8657986
    Abstract: A method for producing an active substance-containing polyurethane plaster for transdermal application is described, said plaster containing at least one active substance at a highly accurate declared dose. In the described method, a solvent-free active substance-containing polyurethane is produced by reactively coating a solvent-free active substance-containing polyurethane material (40), which is mixed in a coating unit (60) immediately before or during the application process, onto an elastic backing foil (20) that has been rendered non-extensible at least in the direction in which the applied polyurethane material is processed by means of a supporting, adhering auxiliary foil (30) which is at least mono-axially non-extensible.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: February 25, 2014
    Assignee: Otto Bock PUR LifeScience GmbH
    Inventors: Peter Gansen, Michael Dittgen, Ingeborg Steinfatt-Hoffmann, Christian Schulte, Juergen Henze
  • POLYURETHANE PLASTER FOR THE TRANSDERMAL APPLICATION OF ACTIVE SUBSTANCES, AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20110229677
    Abstract: A method for producing an active substance-containing polyurethane plaster for transdermal application is described, said plaster containing at least one active substance at a highly accurate declared dose. In the described method, a solvent-free active substance-containing polyurethane is produced by reactively coating a solvent-free active substance-containing polyurethane material (40), which is mixed in a coating unit (60) immediately before or during the application process, onto an elastic backing foil (20) that has been rendered non-extensible at least in the direction in which the applied polyurethane material is processed by means of a supporting, adhering auxiliary foil (30) which is at least mono-axially non-extensible.
    Type: Application
    Filed: November 26, 2009
    Publication date: September 22, 2011
    Inventors: Peter Gansen, Michael Dittgen, Ingeborg Steinfatt-Hoffmann, Christian Chulte, Juergen Henze