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:
Aug. 04, 2026
Filed:
Jul. 29, 2022
Temptime Corporation, Morris Plains, NJ (US);
Mohannad Abdo, Clifton, NJ (US);
Thaddeus Prusik, Stroudsburg, PA (US);
Marielle K. Smith, Parlin, NJ (US);
Zebra Technologies Corporation, Lincolnshire, IL (US);
Abstract
A dual heat-freeze indicator and methods for making the same are disclosed. The dual heat-freeze exposure indicator includes a substrate, a low temperature indicator material provided in a first initial color state, a high temperature indicator material provided in a second initial color state, both supported by the substrate. The low temperature indicator material is configured to change from the first initial color state to a first exposed color state responsive to the indicator being exposed to a temperature below a low temperature threshold. The high temperature indicator material is configured to irreversibly change from the second initial color state to a second exposed color state responsive to the indicator being exposed to a temperature above a high temperature threshold. The low temperature indicator material returns from the exposed color state to the initial color state responsive to being exposed to a temperature above a reset temperature threshold.