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:
Jul. 22, 2025
Filed:
Jan. 31, 2023
Applicant:
Purdue Research Foundation, West Lafayette, IN (US);
Inventor:
Rahim Rahimi, West Lafayette, IN (US);
Assignee:
Purdue Research Foundation, West Lafayette, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/00 (2006.01); B23K 26/21 (2014.01); B23K 26/38 (2014.01); G01N 27/22 (2006.01);
U.S. Cl.
CPC ...
G01N 27/223 (2013.01); B23K 26/21 (2015.10); B23K 26/38 (2013.01);
Abstract
A humidity sensor may include a metalized substrate comprising a laser ablated portion and a remaining metal portion. The remaining metal portion may include a spiral inductor and an interdigitated capacitor. The interdigitated capacitor may be coupled in parallel with the spiral inductor. The interdigitated capacitor may be centrally positioned with respect to the spiral inductor and surrounded by spirals of the spiral inductor. The spiral inductor and interdigitated capacitor may be formed by selectively ablating the metallized substrate to define the inductor and capacitor.