Patents by Inventor Francis J. Lucas

Francis J. Lucas 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: 7431497
    Abstract: A dental x-ray film viewing device includes a film reader having a digital video camera and an image display screen connected to the video camera for displaying an enlarged digital image of the x-ray film using signals transmitted directly from the video camera. The film reader includes a film illumination station that has a back-lighted film seat. The film seat includes a translucent plate and a non-transparent film anchoring wafer having an opening complimentary to the x-ray film for seating the x-ray film, and blocking light in an area surrounding the x-ray film. The film reader has a video camera having lens thereof focusing on the film window, and the lens has a distortion at the full field less than 3%. The device provides a substantially enlarged high resolution and high contrast digital image as an accurate representation of the original x-ray film, without digital processing by a computer.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: October 7, 2008
    Inventors: James John Lucas, Fereidon Wolfgang Manssuri, Francis J. Lucas
  • Publication number: 20080075231
    Abstract: A dental x-ray film viewing device includes a film reader having a digital video camera and an image display screen connected to the video camera for displaying an enlarged digital image of the x-ray film using signals transmitted directly from the video camera. The film reader includes a film illumination station that has a back-lighted film seat. The film seat includes a translucent plate and a non-transparent film anchoring wafer having an opening complimentary to the x-ray film for seating the x-ray film, and blocking light in an area surrounding the x-ray film. The film reader has a video camera having lens thereof focusing on the film window, and the lens has a distortion at the full field less than 3%. The device provides a substantially enlarged high resolution and high contrast digital image as an accurate representation of the original x-ray film, without digital processing by a computer.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 27, 2008
    Inventors: James John Lucas, Fereidon Wolfgang Manssuri, Francis J. Lucas
  • Patent number: 5905031
    Abstract: The necessity to detect blast cells in a patient sample to determine a treatment regime for leukemia has long been desired. The present invention relates to a method and assay reagents for identification of blast cells in a fluid sample. The method further enables the determination of the lineage of the blast cells. The new method provides a determination of blast cells in less time than prior art methods.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: May 18, 1999
    Assignee: Coulter International Corp.
    Inventors: Nazle Kuylen, Harold R. Crews, Gerald E. Jaffe, Maria Barcelon, Francis J. Lucas, Nancy M. Garcia