US 11,928,549 B1
Systems and methods for tracking and monitoring products using embedded threshold indicators
Leslie Young Harvill, Olympia, WA (US); David Gross, Palo Alto, CA (US); and E. Paul Salcedo, Santa Clara, CA (US)
Assigned to Provindre, Inc., Santa Clara, CA (US)
Filed by Provindre, Inc., Santa Clara, CA (US)
Filed on Oct. 21, 2022, as Appl. No. 17/970,738.
Int. Cl. G06K 7/14 (2006.01); G06K 1/12 (2006.01)
CPC G06K 7/1417 (2013.01) [G06K 1/123 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for manufacturing a device for monitoring an object, comprising:
forming a first layer by printing a first array of indicators on a substrate;
forming a second layer by printing a second array of indicators on the second layer;
depositing a color development layer on the second layer, the second layer isolating the first layer and the color development layer; and
printing an optically coded layer on the color development layer, the optically coded layer including an optical coded tag encoding one or more identifiers for the object.