Patents by Inventor Thomas D. Lyons

Thomas D. Lyons 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: 5028518
    Abstract: Photothermographic emulsions sensitive to ultraviolet radiation can be coated on both sides of polymeric film which is inherently absorptive of the ultraviolet radiation, preventing crossover effects in cassette loading of the film.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: July 2, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas D. Lyons, Sergio Pesce, John M. Winslow
  • Patent number: 4707435
    Abstract: Industrial radiographic systems having low grainines and high information density may be constructed with intensifying screens sandwiching radiation sensitive elements having emulsions wherein the average size of the silver halide grains is less than 0.4 micrometers.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: November 17, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas D. Lyons, Peter B. Jamieson
  • Patent number: 4480024
    Abstract: Photothermographic systems have not been useful in combination with X-ray purposes because of low speed, poor resolution and poor contrast. A particularly designed photothermographic element in combination with a rare-earth intensifying screen provides a high quality, fast, high resolution photothermographic radiographic system.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: October 30, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas D. Lyons, Gregory J. McCarney