Patents by Inventor Robert J. Kruckemeyer

Robert J. Kruckemeyer 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).

  • Method for deterring forgeries and authenticating signatures
    Patent number: 6030001
    Abstract: A method for deterring forgeries and authenticating signatures placed on any document or other object (collectively "Item") is disclosed. A first two dimensional bar code or forgery-proof diffraction grating pattern or similar information bearing medium (Electronic Fingerprint or "EF") is issued to a person whose signature is being protected ("Principal") by a central registrar ("CR"). A personal identification number ("PIN") which has been assigned by the CR to the Principal is encoded on the EF. The PIN remains constant and is encoded on all EFs distributed to the Principal.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 29, 2000
    Inventor: Robert J. Kruckemeyer
  • Method for determining forgeries and authenticating signatures
    Patent number: 5737886
    Abstract: A method for deterring forgeries and authenticating signatures placed on any document or other object (collectively "Item") is disclosed. A first forgery-proof diffraction grating pattern or similar information bearing medium (Electronic Fingerprint or "EF") is issued to a person whose signature is being protected ("Principal") by a central registrar ("CR"). A personal identification number ("PIN") which has been assigned by the CR to the Principal is encoded on the EF. The PIN remains constant and is encoded on all EFs distributed to the Principal. In addition to the PIN, the EF contains another code ("Code") that is distinct for each EF distributed to the Principal. The Principal must acknowledge to the CR, through the use of his or her PIN, that he or she has received physical possession of the EFs before the EFs are considered valid.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: April 14, 1998
    Inventor: Robert J. Kruckemeyer
  • Method for deterring forgeries and authenticating signatures
    Patent number: RE38044
    Abstract: A method for deterring forgeries and authenticating signatures placed on any document or other object (collectively “Item”) is disclosed. A first two dimensional bar code or forgery-proof diffraction grating pattern or similar information bearing medium (Electronic Fingerprint or “EF”) is issued to a person whose signature is being protected (“Principal”) by a central registrar (“CR”). A personal identification number (“PIN”) which has been assigned by the CR to the Principal is encoded on the EF. The PIN remains constant and is encoded on all EFs distributed to the Principal.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: March 25, 2003
    Assignee: Legends, Inc.
    Inventor: Robert J. Kruckemeyer