US 12,247,884 B2
Customizable supplies for high temperature exposure monitoring
Marielle K. Smith, Parlin, NJ (US); Mohannad Abdo, Clifton, NJ (US); Eric W. Liberato, Pequannock, NJ (US); and John E. Olson, Dayton, NJ (US)
Assigned to TEMPTIME CORPORATION, Morris Plains, NJ (US)
Filed by Temptime Corporation, Morris Plains, NJ (US)
Filed on Oct. 22, 2021, as Appl. No. 17/508,206.
Prior Publication US 2023/0126486 A1, Apr. 27, 2023
Int. Cl. G01K 11/12 (2021.01); G01K 1/02 (2021.01); G01K 3/04 (2006.01)
CPC G01K 11/12 (2013.01) [G01K 1/02 (2013.01); G01K 3/04 (2013.01)] 31 Claims
OG exemplary drawing
 
1. An excess heat exposure indicator, comprising:
a print media substrate comprising an indicator region and a data region; and
at least one first thermochromic composition provided on the substrate within the indicator region of the substrate, the first thermochromic composition configured to change color state from a first color state to a second color state when exposed to a temperature above a first predetermined temperature threshold;
wherein a second thermochromic composition provided on the substrate within the data region, the second thermochromic composition configured to change color state from a third color state to a fourth color state when heated above a second predetermined temperature threshold, wherein the second predetermined temperature threshold is higher than the first predetermined temperature threshold;
wherein the indicator region is selectively treated with heat above the first predetermined temperature threshold to place a first portion of the indicator region including the first thermochromic composition in the second color state, different than the first color state while leaving a remaining portion of the indicator region including the first thermochromic composition in the first color state, forming a visible indicia, the visible indicia configured to change appearance when the remaining portion of the indicator region is subsequently exposed to a temperature above the first predetermined temperature threshold.