ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,545, issued on July 22, was assigned to Purdue Research Foundation (West Lafayette, Ind.).
"Laser ablated wireless humidity sensor" was invented by Rahim Rahimi (West Lafayette, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 ind...