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:
Mar. 07, 2017
Filed:
Sep. 27, 2013
Applicants:
Curt B. Campbell, San Ramon, CA (US);
Andrew Howes, San Ramon, CA (US);
Terri Denslow, San Ramon, CA (US);
Inventors:
Curt B. Campbell, San Ramon, CA (US);
Andrew Howes, San Ramon, CA (US);
Terri Denslow, San Ramon, CA (US);
Assignee:
Chevron Oronite Company LLC, San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/584 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
C09K 8/584 (2013.01); E21B 43/16 (2013.01);
Abstract
An alkylaromatic sulfonate is disclosed wherein the alkyl group contains a distribution of alkyl chain lengths which comprise greater than 15 weight percent and up to about 35 weight percent of Cto C. Also disclosed is a process for preparing an alkylaromatic sulfonate and its use in recovering crude oil from a subterranean hydrocarbon containing formation.