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.

Date of Patent:
Mar. 22, 2022

Filed:

Apr. 26, 2018
Applicant:

Hewlett-packard Development Company, L.p., Spring, TX (US);

Inventors:

Sarah Gish, Corvallis, OR (US);

Tod Woodford, Corvallis, OR (US);

Alexander Govyadinov, Corvallis, OR (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/327 (2006.01); C25D 5/02 (2006.01); G01N 27/30 (2006.01); C23C 18/42 (2006.01); G01N 27/333 (2006.01);
U.S. Cl.
CPC ...
G01N 27/301 (2013.01); C23C 18/42 (2013.01); C25D 5/02 (2013.01); G01N 27/3275 (2013.01); G01N 27/333 (2013.01);
Abstract

An example device includes a processor to connect to an electrode disposed within a microfluidic volume and to connect a second electrode that includes a surface of silver metal disposed within the microfluidic volume. The processor is to apply an electrical potential between the electrode and the second electrode when the microfluidic volume contains a fluid that contains chloride ions to form a layer of silver chloride on the surface of the second electrode. The processor is further to cease application of the electrical potential and operate the second electrode as a reference electrode in a measurement process performed within the microfluidic volume.


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