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:
Aug. 16, 2016
Filed:
Dec. 17, 2012
Applicant:
Shell Oil Company, Houston, TX (US);
Inventors:
Zhongxin Huo, Katy, TX (US);
Timothy Michael Shea, The Woodlands, TX (US);
Cornelis Antonius Theodorus Kuijvenhoven, Katy, TX (US);
Ying Zhang, Sugar Land, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/06 (2006.01); E21B 43/22 (2006.01); C09K 8/52 (2006.01); C09K 8/524 (2006.01);
U.S. Cl.
CPC ...
C09K 8/52 (2013.01); C09K 8/524 (2013.01); E21B 37/06 (2013.01);
Abstract
A method of inhibiting the formation or deposition of wax in a mixture comprising hydrocarbons, the method comprising contacting the mixture with a composition which comprises at least one ionic liquid. The ionic liquid is preferably a polyamine salt derivative or a polypropylene glycol derivative.