Patents by Inventor Yijian Jin

Yijian Jin 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 high pressure gaseous oxygen and liquid product
    Patent number: 5655388
    Abstract: A cryogenic rectification system wherein liquid oxygen from a cryogenic air separation plant is pressurized and then vaporized in a high pressure liquefier producing product high pressure oxygen gas and generating liquid nitrogen for enhanced liquid product production.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: August 12, 1997
    Assignee: Praxair Technology, Inc.
    Inventors: Dante Patrick Bonaquist, Robert Arthur Beddome, Michael Yijian Jin
  • Cryogenic rectification system for fluorine compound recovery using additive liquid
    Patent number: 5626023
    Abstract: A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising combining the carrier gas feed stream with additive liquid to keep fluorine compounds from solidifying and to reduce the vapor pressure of the fluorine compounds, followed by separation and recovery using a cryogenic rectification column system.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: May 6, 1997
    Assignee: Praxair Technology, Inc.
    Inventors: Theodore F. Fisher, Yijian Jin
  • Cryogenic rectification system for fluorine compound recovery
    Patent number: 5502969
    Abstract: A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising a mass transfer contacting device, such as a cryogenic wash column, integrated with a cryogenic rectification column system.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: April 2, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Yijian Jin, Theodore F. Fisher