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:
May. 24, 2016
Filed:
Sep. 30, 2014
Joseph A. Duimstra, Belmont, CA (US);
Lee Leonard, Mill Valley, CA (US);
Gregory G. Wildgoose, Oxford, GB;
Eric Lee, Sunnyvale, CA (US);
Joseph A. Duimstra, Belmont, CA (US);
Lee Leonard, Mill Valley, CA (US);
Gregory G. Wildgoose, Oxford, GB;
Eric Lee, Sunnyvale, CA (US);
Senova Systems, Inc., Sunnyvale, CA (US);
Abstract
Internally calibrated pH and other analyte sensors based on redox agents provide more accurate results when the redox active reference agent is in a constant chemical environment, yet separated from the solution being analyzed in such a way as to maintain electrical contact with the sample. Room temperature ionic liquids (RTIL) can be used to achieve these results when used as a salt bridge between the reference material and the sample being analyzed. The RTIL provides the constant chemical environment and ionic strength for the redox active material (RAM) and provides an electrolytic layer that limits or eliminates direct chemical interaction with the sample. A broad range of RAMs can be employed in a variety of configurations in such 'Analyte Insensitive Electrode' devices.