Patents by Inventor Demosthenes Dragoneas

Demosthenes Dragoneas 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).

  • Patent number: D340328
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: October 12, 1993
    Assignee: Demogreg CC
    Inventors: Demosthenes Dragoneas, Gregorios Pagonis