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. 24, 1983
Filed:
Jul. 01, 1980
Applicant:
Inventor:
William J Detroit, Schofield, WI (US);
Assignee:
Reed Lignin, Inc., Greenwich, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07G / ; E21B / ;
U.S. Cl.
CPC ...
2601 / ; 166274 ; 252 / ;
Abstract
A composition useful in supplemental oil recovery from subterranean geological formations which composition includes a lignosulfonate that has been reacted with a halocarboxylic acid in an aqueous alkaline medium; and the process of introducing this composition into subterranean formations and reservoirs for the purpose of recovering additional petroleum therefrom.