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:
Oct. 08, 1991
Filed:
May. 01, 1989
Applicant:
Inventors:
Kenneth L Bridges, Breaux Bridge, LA (US);
Kerry L Kalinski, Lafayette, LA (US);
Assignee:
Osca, Inc., Lafayette, LA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
252-851 ; 252-8513 ; 252-8514 ; 252-8551 ;
Abstract
The viscosity of Xanthan gum polymer solutions is reduced by the addition of hydrogen peroxide and adjustment of the pH of the solution to at least 8.0.