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:
Oct. 12, 2021
Filed:
Oct. 31, 2018
Applicant:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Inventors:
Adrien Pierre, South San Francisco, CA (US);
Sean Emerson Doris, San Francisco, CA (US);
David Eric Schwartz, Concord, MA (US);
Assignee:
PALO ALTO RESEARCH CENTER INCORPORATED, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/22 (2006.01); G01N 27/60 (2006.01);
U.S. Cl.
CPC ...
G01N 27/225 (2013.01); G01N 27/605 (2013.01);
Abstract
A capacitive relative humidity sensor includes a first electrode and a second electrode, where at least the one of the electrodes is a water-permeable electrode. The electrodes act in conjunction with a water-sensitive hygroscopic dielectric material. The design enables low-cost and simple fabrication of fast-responding and stable relative humidity sensors using digital fabrication techniques.