Patents by Inventor Dale Alan Davison

Dale Alan Davison 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).

  • Preparatory supercritical fluid extraction using sealed chamber
    Patent number: 5670048
    Abstract: A preparatory supercritical extraction cartridge includes a chamber for sample having a volume in the range of 20 cubic centimeters to 2,000 cubic centimeters. An inlet and an outlet are fastened to the cartridge walls by threads and sealed to said cartridge walls With spring loaded seals so that they can be removed with a torque requirement of less than 35 pound inches. Inlet and outlet tubing are fastened to the inlet and outlet by quick release connectors.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: September 23, 1997
    Assignee: Isco, Inc.
    Inventors: Dale Alan Davison, Henry LeRoy Walters