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. 23, 2024
Filed:
Dec. 21, 2012
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Lynne Crawford, Harlow, GB;
Andrew Meredith, Cambridge, GB;
Nathan Lawrence, Wyton, GB;
Timothy Jones, Cottenham, GB;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/28 (2006.01); E21B 47/00 (2012.01); G01N 27/30 (2006.01); G01N 27/48 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 27/28 (2013.01); E21B 47/00 (2013.01); G01N 27/302 (2013.01); G01N 27/308 (2013.01); G01N 27/48 (2013.01); G01N 33/1886 (2013.01);
Abstract
An electrochemical sensor incorporates a ferrocenophane which is a compound with at least one bridging group covalently attached to and connecting the two cyclopentadiene rings associated with the same iron atom. This bridging group maybe tetramethylene. As compared to an equivalent sensor with ferrocene, the tolerance of elevated temperature is improved and so is the working life at ambient temperature.