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:
Dec. 31, 2019
Filed:
Feb. 22, 2017
Hewlett-packard Development Company, L.p., Spring, TX (US);
Ning Ge, Palo Alto, CA (US);
Jarrid Wittkopf, Palo Alto, CA (US);
Robert Ionescu, Palo Alto, CA (US);
Helen A. Holder, Palo Alto, CA (US);
Paul Howard Mazurkiewicz, Ft. Collins, CO (US);
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
In some examples, a controllable read blocking based radio-frequency identification (RFID) device may include a substrate layer, and a trace formed of a conductive material and disposed on, partially within, or fully within the substrate layer. The controllable read blocking based RFID device may further include a controllable read blocking layer disposed on the substrate layer and the trace and including a fluid disposed in the controllable read blocking layer to selectively block or allow passage of electromagnetic waves to the trace to respectively inhibit or allow communication of a RFID reading device with the controllable read blocking based RFID device.