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:
Jun. 15, 2021
Filed:
Sep. 06, 2018
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Patrick Staley, Sunnyvale, CA (US);
Nadezda Fomina, Redwood, CA (US);
Murat Deliomeroglu, Mountain View, CA (US);
Christopher Johnson, San Carlos, CA (US);
Young Shik Shin, Mountain View, CA (US);
Assignee:
ROBERT BOSCH GMBH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/30 (2006.01); G01N 27/416 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4167 (2013.01); G01N 27/302 (2013.01); G01N 27/4163 (2013.01); G01N 27/308 (2013.01);
Abstract
A sensor and a corresponding method measure the pH of a solution without using an external reference electrode. The pH sensor has at least one functionalized electrode with an attached first redox active molecule and an attached second redox active molecule that are differently sensitive to pH and oxidize/reduce at different voltages, and a difference in peaks of a response of the two molecules to applied electrical parameter is measured and correlated to a particular pH.