Patents by Inventor John M. Houston

John M. Houston 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).

  • Electrostatic recording of X-ray images
    Patent number: 3940620
    Abstract: A device for the electrostatic recording of X-ray images comprises two spaced electrodes with a gas-filled gap therebetween. One of the electrodes comprises a layer of an ultraviolet emitting fluorescent material and a layer of an air-exposable ultraviolet-sensitive photoemitting material. A plastic sheet is adjacent to the other electrode. An electric field is applied across the gap to accelerate photoelectrons emitted by the photoemitting material. The electrostatic image formed on the plastic sheet is developed xerographically after the exposure.
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: February 24, 1976
    Assignee: General Electric Company
    Inventors: John M. Houston, James R. Young, Nathan R. Whetten