Patents Assigned to Prakair Technology, Inc.
  • Cryogenic rectification system for processing atmospheric fluids
    Patent number: 6314757
    Abstract: A cryogenic rectification system comprising a rare gas concentrator column for producing a liquid having an enhanced concentration of krypton and xenon, and which processes atmospheric fluids and also produces gaseous oxygen and liquid nitrogen.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: November 13, 2001
    Assignee: Prakair Technology, Inc.
    Inventors: James Robert Dray, Theodore Fringelin Fisher