Patents by Inventor Jeff Logsdon

Jeff Logsdon 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).

  • Refrigeration system
    Patent number: 7152428
    Abstract: A refrigeration process is disclosed that employs a mixed refrigerant to chill a process gas stream in which a second stream is cooled against rewarming vaporized mixed refrigerant at low pressure and subsequently is at least partially vaporized against at least partially condensed mixed refrigerant at a higher pressure.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: December 26, 2006
    Assignee: BP Corporation North America Inc.
    Inventors: Guang-Chung Lee, Rian Reyneke, Michael J. Foral, Christos Papadopoulos, Wayne W. Y. Eng, Jeff Logsdon
  • Refrigeration system
    Patent number: 7082787
    Abstract: The recovery of ethylene from light gases at low temperature by the use of a mixed refrigeration system comprising methane, ehtylene and/or ethane, and propylene and/or propane.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: August 1, 2006
    Assignee: BP Corporation North America Inc.
    Inventors: Guang-Chung Lee, Rian Reyneke, Michael J. Foral, Christos Papadopoulos, Wayne W. Y. Eng, Jeff Logsdon
  • Refrigeration system
    Publication number: 20060021377
    Abstract: A refrigeration process is disclosed that employs a mixed refrigerant to chill a process gas stream in which a second stream is cooled against rewarming vaporized mixed refrigerant at low pressure and subsequently is at least partially vaporized against at least partially condensed mixed refrigerant at a higher pressure.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Guang-Chung Lee, Rian Reyneke, Michael Foral, Christos Papadopoulos, Wayne Eng, Jeff Logsdon
  • Refrigeration system
    Publication number: 20050198998
    Abstract: The recovery of ethylene from light gases at low temperature by the use of a mixed refrigeration system comprising methane, ehtylene and/or ethane, and propylene and/or propane.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Inventors: Guang-Chung Lee, Rian Reyneke, Michael Foral, Christos Papadopoulos, Wayne Eng, Jeff Logsdon