Patent ID: 9495851
Filing Date: 2016-11-15
CPC Classification: G06K,G06Q,G08B,G09F

Claim Text:
1. A non-transitory computer-readable medium embodying a program that, when executed by at least one computing device, directs the at least one computing device to perform a method comprising: instructing, by the at least one computing device, a radio frequency identification (RFID) tag reader to transmit an electromagnetic field; receiving, by the at least one computing device, at least one unique identifier from a plurality of RFID tags in response to the electromagnetic field, the plurality of RFID tags being provided on a product package for a product; identifying, by the at least one computing device, the product using the at least one unique identifier; detecting, by the at least one computing device, whether the product package has been opened based at least in part on a confluence of at least two unique identifiers received from the plurality of RFID tags; storing, by the at least one computing device, a timing associated with whether the product package has been opened; and determining, by the at least one computing device, whether the product has expired based at least in part on the timing.