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. 05, 1986
Filed:
Jan. 09, 1985
Applicant:
Inventors:
Wolfgang Oberkirch, Leverkusen, DE;
Armand de Montigny, Leverkusen, DE;
Hansjurgen Botsch, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166275 ; 252-8554 ;
Abstract
In the injection of flood water into crude oil deposits, the improvement which comprises including in the water a polyorganopolysiloxane-polyoxyalkylene block copolymer of the formula