Patents by Inventor Thomas C. Littlefield

Thomas C. Littlefield 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).

  • Extracting device for extracting antigens
    Patent number: 5120503
    Abstract: There is described a container used to extract antigens for an immunoassay, having a wall means defining open and closed opposite ends. The container is provided with dividing members located in the closed end of the container which divides the volume of the closed end into at least two separate regions. A portion of the container's wall means adjacent to the closed end is shaped and sized to cooperate with a depositing device to ensure that separate reagents are separately deposited on opposite sides of the dividing members.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: June 9, 1992
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Hinckley, Dennis R. Zander, Thomas C. Littlefield, Richard W. Bacchetta, Scott H. Schwallie
  • Control panel
    Patent number: 5059960
    Abstract: A control panel includes electronically addressable display means and a removable opaque overlay. The overlay has transparent graphics indicating machine options for primary functions. The machine options are selectively backlit by the display means to indicate a particular option. When the overlay is removed the display means operates in its conventional manner to guide the operator through more complex special features.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: October 22, 1991
    Assignee: Eastman Kodak Company
    Inventors: Daniel J. Rosenberg, Thomas C. Littlefield