Patents by Inventor Ken Barbb

Ken Barbb 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).

  • Emergency light switch
    Patent number: D345730
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: April 5, 1994
    Inventors: Ken Barbb, Ronald Mater