Patents by Inventor Rüdger Wittenberg

Rüdger Wittenberg 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).

  • Sealing compounds with scavenger materials of small particle size
    Patent number: 9663643
    Abstract: PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 30, 2017
    Inventors: William David Coulter, Rüdger Wittenberg
  • Sealing Compounds with Scavenger Materials of Smaill Particle Size
    Publication number: 20130041087
    Abstract: PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.
    Type: Application
    Filed: December 8, 2009
    Publication date: February 14, 2013
    Applicant: Actega DS GmbH
    Inventors: William David Coulter, Rüdger Wittenberg