Patents by Inventor Franz Duenser

Franz Duenser 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).

  • Electronic bracelet for access control
    Patent number: D750521
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 1, 2016
    Assignee: GATNER ELECTRONIC GMBH
    Inventors: Hanno Poesel, Franz Duenser, Elmar Hartmann
  • Electronic bracelet for access control
    Patent number: D771511
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: November 15, 2016
    Assignee: GANTNER ELECTRONIC GMBH
    Inventors: Hanno Poesel, Franz Duenser, Elmar Hartmann