Patents by Inventor Richard Handley

Richard Handley 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).

  • Cryogenic rectification system for producing low purity oxygen and high purity oxygen
    Patent number: 5806342
    Abstract: A cryogenic rectification system for producing low purity oxygen and high purity oxygen employing an offset dual column with bottom reboil of the lower pressure column effected by condensing feed air, with intermediate reboil of the lower pressure column effected by condensing higher pressure column top vapor, and with waste nitrogen turboexpansion to generate refrigeration.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: September 15, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Dante Patrick Bonaquist, Nancy Jean Lynch, Susan Marie Sattan, James Richard Handley