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. 01, 2022

Filed:

Dec. 11, 2017
Applicant:

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

Inventors:

Steven T Castle, Corvallis, OR (US);

Daryl E Anderson, Corvallis, OR (US);

James Michael Gardner, Corvallis, OR (US);

Eric Martin, Corvallis, OR (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/195 (2006.01); B41J 2/175 (2006.01); B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
B41J 2/195 (2013.01); B41J 2/17566 (2013.01); B41J 29/393 (2013.01); B41J 2002/17579 (2013.01);
Abstract

A fluid reservoir () includes a circuit () extending in the fluid reservoir to be at least partially in contact with fluid () inside the fluid reservoir during use, at least a first impedance sensor () and second impedance sensor () coupled to the circuit, wherein the at least first and second impedance sensors are to output impedance values indicative of a degree of particle separation in the fluid.


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