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. 16, 1986
Filed:
Jul. 02, 1984
Applicant:
Inventors:
Francis E DeBons, Richmond, TX (US);
Larry D Pedersen, Canal Winchester, OH (US);
David K Olsen, Bartlesville, OK (US);
William C Richardson, Bellaire, TX (US);
Assignees:
Getty Oil Company, Houston, TX (US);
Reed Lignin, Inc., Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166274 ; 166275 ; 252-8554 ;
Abstract
A method of enhanced oil recovery comprising injecting a surfactant system comprised of an oxidized alkali lignin and an anionic and/or nonionic surfactant into a formation containing oil and producing the oil thus mobilized.
DeBons, Francis. (1986). Oxidized alkali lignins and their use in enhanced oil recovery (U.S. Patent No. 4611659). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4611659
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile