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:
Nov. 16, 2010
Filed:
Dec. 01, 2005
Applicants:
LI Jiang, Newton, MA (US);
Timothy Gareth John Jones, Cottenham, GB;
Inventors:
Li Jiang, Newton, MA (US);
Timothy Gareth John Jones, Cottenham, GB;
Assignee:
Schlumberger Technology Corporation, Cambridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/59 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical sensor for pH is described using a cross-linked network of bisilanes to immobilize a pH sensitive chromophore to a surface potentially exposed to a high pressure, high temperature environment such as wellbore effluents at a downhole location.