The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2009
Filed:
Jul. 24, 2006
Applicants:
Weldon L. Ransbarger, Houston, TX (US);
Bobby D. Martinez, Missouri City, TX (US);
Attilio J. Praderio, Houston, TX (US);
Inventors:
Weldon L. Ransbarger, Houston, TX (US);
Bobby D. Martinez, Missouri City, TX (US);
Attilio J. Praderio, Houston, TX (US);
Assignee:
ConocoPhillips Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cascade-type natural gas liquefaction methods and apparatus are provided, having enhanced thermodynamic efficiencies, through the use of added refrigeration levels in one or both of the ethylene and methane refrigeration systems thereof.