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:
Jan. 14, 1997
Filed:
Apr. 12, 1995
Applicant:
Inventor:
Michael Jarrett, Houston, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
507131 ; 507129 ; 507241 ; 507246 ; 507244 ; 507133 ;
Abstract
The present invention provides amphoteric acetates, diacetates, and glycinates which may be added to drilling fluids in order to minimize hydration and prevent erosion loss of water-sensitive shale substrates.