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. 23, 1988
Filed:
Mar. 26, 1986
Applicant:
Inventors:
Hiroshi Morita, Chiba, JP;
Yasuyuki Kawada, Odawara, JP;
Junichi Yamada, Chiba, JP;
Toshiyuki Ukigai, Chiba, JP;
Assignee:
Lion Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166274 ; 166273 ; 252-8554 ;
Abstract
A micellar slug for use in the recovery of oil, consisting essentially of a surfactant and an aqueous medium, which may contain an inorganic salt. The surfactant contains: