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:
Apr. 21, 1992
Filed:
Feb. 28, 1991
Applicant:
Inventors:
Gregory S Hewgill, Chino, CA (US);
Leonard J Kalfayan, Fullerton, CA (US);
Assignee:
Union Oil Company of California, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166303 ; 166272 ; 252-8554 ;
Abstract
In situ hydrogenation in a subterranean formation is readily performed by introducing a non-gaseous hydrogen precursor into steam to form a composition. The composition is injected into the oil-bearing subterranean formation to enhance the recovery of the oil from the formation.
Hewgill, Gregory. (1992). Enhanced oil recovery technique using hydrogen precursors (U.S. Patent No. 5105887). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5105887
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile