Patents by Inventor Elka Plamenova Alexandrova

Elka Plamenova Alexandrova 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 tracking device
    Patent number: D723957
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 10, 2015
    Assignee: Tile, Inc.
    Inventors: Nicholas George Evans, Michael George Farley, Elka Plamenova Alexandrova