07490575 is referenced by 24 patents and cites 40 patents.

A combination temperature exposure indicator suitable for attachment to, or association with, a host product has a substrate, a freeze indicator supported by the substrate and a cumulative ambient time-temperature indicator also supported by the substrate. The freeze indicator can provide a visual indication of exposure of the freeze indicator to a freezing or near-freezing temperature and the cumulative time-temperature indicator can provide a visual indication of exposure of the cumulative time-temperature indicator to a predetermined cumulative time-temperature value. Also disclosed are: a combination freeze indicator and threshold temperature indicator; a combination threshold indicator and cumulative temperature indicator; and three-way combination indicators that can provide indications of cumulative past temperature exposure, exposure to freezing temperatures and exposure to a temperature above a threshold.

Title
Combination freeze indicators
Application Number
11/557841
Publication Number
7490575 (B2)
Application Date
November 8, 2006
Publication Date
February 17, 2009
Inventor
Dawn Smith
Martinsville
NJ, US
Thaddeus Prusik
Stroudsburg
PA, US
Dene H Taylor
New Hope
PA, US
Agent
K & L Gates
Assignee
Temptime Corporation
NJ, US
IPC
G01K 11/12
G01K 3/04
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