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:
Apr. 24, 2012
Filed:
Oct. 20, 2005
Applicants:
Reinaldo Conrado Navarrete, Nanuet, NY (US);
Hua Yu, Scarsdale, NY (US);
Wangqi Hou, Chesterfield, VA (US);
Mohammad Abdur Rahman, Pomona, NY (US);
Inventors:
Reinaldo Conrado Navarrete, Nanuet, NY (US);
Hua Yu, Scarsdale, NY (US);
Wangqi Hou, Chesterfield, VA (US);
Mohammad Abdur Rahman, Pomona, NY (US);
Assignee:
Akzo Nobel N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/32 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention generally relates to a polyamide emulsifier, to a drilling fluid composition that comprises said emulsifier and to a method of drilling a borehole into a subterranean formation utilizing the drilling fluid composition of the invention.