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:
May. 11, 1982
Filed:
Nov. 20, 1980
Applicant:
Inventor:
Robert H Friedman, Houston, TX (US);
Assignee:
Getty Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166274 ; 166295 ;
Abstract
Methods for the recovery of oil are provided, which include selectively plugging the water-rich portions of an oil-producing formation by injecting into the formation a swelling polymer.
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Friedman, Robert. (1982). Methods for recovery of oil (U.S. Patent No. 4328864). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4328864
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile