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. 22, 2000
Filed:
Aug. 27, 1998
Applicant:
Inventors:
Rebecca G Udarbe, Garland, TX (US);
Kim Hancock-Grossi, Dallas, TX (US);
Charles R George, Mexquite, TX (US);
Assignee:
Fritz Industries, Inc., Mesquite, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; E21B / ;
U.S. Cl.
CPC ...
507120 ; 507119 ; 507121 ; 507122 ; 507123 ; 507125 ; 523130 ; 166295 ;
Abstract
This invention provides a composition for and a method of using the composition to reduce the loss of liquid from aqueous compositions employed while rotary drilling. The composition of this invention comprises a polymeric material selected from homopolymers, random copolymers and random terpolymers, each of which includes a vinylamide morpholine derivative in the recipe for making the polymeric material.