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. 09, 2011
Filed:
Aug. 29, 2008
Bhavani Raghuraman, Wilton, CT (US);
Gale H. Gustavson, Brookfield, CT (US);
Emilie Dressaire, Beziers, FR;
Oleg Zhdaneev, Tomsk, RU;
Ronald Van Hal, Ridgefield, CT (US);
Oliver Mullins, Ridgefield, CT (US);
Philippe Salamitou, Mamaroneck, NY (US);
Bhavani Raghuraman, Wilton, CT (US);
Gale H. Gustavson, Brookfield, CT (US);
Emilie Dressaire, Beziers, FR;
Oleg Zhdaneev, Tomsk, RU;
Ronald Van Hal, Ridgefield, CT (US);
Oliver Mullins, Ridgefield, CT (US);
Philippe Salamitou, Mamaroneck, NY (US);
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.