Patents by Inventor Willi Volpp

Willi Volpp 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).

  • Intrusion resistant safety glazings and solar cell modules
    Patent number: 8197928
    Abstract: Described certain plasticized poly(vinyl butyral) (PVB) interlayer sheets that may be used to produce safety glass and solar cell laminates having enhanced penetration resistance and adequate adhesion levels. In particular, the stress value of these interlayer sheets at an elongation of 120% is preferably in the range of from about 8 to about 15 N/mm2.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: June 12, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Willi Volpp, Luc A. Moeyersons, Ingo Kueppenbender, Richard Allen Hayes
  • Intrusion resistant safety glazings and solar cell modules
    Publication number: 20080210287
    Abstract: Described certain plasticized poly(vinyl butyral) (PVB) interlayer sheets that may be used to produce safety glass and solar cell laminates having enhanced penetration resistance and adequate adhesion levels. In particular, the stress value of these interlayer sheets at an elongation of 120% is preferably in the range of from about 8 to about 15 N/mm2.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 4, 2008
    Inventors: Willi Volpp, Luc A. Moeyersons, Ingo Kueppenbender, Richard Allen Hayes