Patents by Inventor George J. Bredehorn

George J. Bredehorn 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).

  • Educational-teaching device
    Patent number: 4728294
    Abstract: An educational device with which a user employs selected positioning of two masks over an array of normally unintelligible information to decipher an intelligible message therefrom, the positioning of the masks being determined by correctly associating useful information on a base member carrying the unintelligible information with markers and indicia carried on the masks and base member.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: March 1, 1988
    Inventor: George J. Bredehorn