Patents by Inventor August Adrianus Johannes Brinkman

August Adrianus Johannes Brinkman 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).

  • Speaker grille for portable radios
    Patent number: D698339
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: January 28, 2014
    Assignee: Tait Limited
    Inventors: August Adrianus Johannes Brinkman, Rodney Stephen Mackrell, Michael George Sanders