Patents by Inventor Grahame Stewart Crook

Grahame Stewart Crook 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).

  • Patent number: 5786889
    Abstract: A method of monitoring the coalignment of a sighting or surveillance sensor suite including a coaligned laser (18) and sensor (12) includes the steps of: modifying the beam from the laser (18) to render it visible to the sensor (12); and redirecting the modified beam from the laser (18) to impinge on the sensor (12). In the preferred embodiments the frequency of the beam is doubled by a doubling crystal. For certain lasers this renders the beam visible to the human eye, or to a camera.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: July 28, 1998
    Assignee: Pilkington P E Limited
    Inventors: Stephen John Pope, Grahame Stewart Crook