Patents by Inventor Doris Walter

Doris Walter 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).

  • Sheet document with security element
    Patent number: D769000
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 18, 2016
    Assignee: GIESECKE & DEVRIENT GMBH
    Inventors: Stefan Bichlmeier, Christian Fuhse, Kathrin Hovestadt, Andreas Rauch, Doris Walter
  • Sheet document with security element
    Patent number: D769001
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 18, 2016
    Assignee: GIESECKE & DEVRIENT GMBH
    Inventors: Stefan Bichlmeier, Christian Fuhse, Kathrin Hovestadt, Andreas Rauch, Doris Walter
  • Sheet document with security element
    Patent number: D780463
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: March 7, 2017
    Assignee: GIESECKE & DEVRIENT GMBH
    Inventors: Stefan Bichlmeier, Christian Fuhse, Kathrin Hovestadt, Andreas Rauch, Doris Walter