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:
Sep. 16, 2003
Filed:
Dec. 18, 2001
Applicant:
Inventors:
Gordon T. Rivers, Houston, TX (US);
Lynn M. Frostman, Sugar Land, TX (US);
John L. Pryzbyliski, Missouri City, TX (US);
Jo Ann McMahon, Arnold, MO (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 ;
U.S. Cl.
CPC ...
C02F 1/00 ;
Abstract
A method for reducing the toxicity of onium compounds, such as ammonium compounds and phosphonium compounds, by the addition of an anionic polymer is described. Suitable anionic polymers include, but are not necessarily limited to, polycarboxylic acids, polysulfonic acids, polyphosphoric acids, polyphosphonic acids, and mixtures thereof.