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Class Information
Number: 374/106
Name: Thermal measuring and testing > Temperature measurement (e.g., thermometer) > Composite temperature-related paramenter > Time-temperature relationship (e.g., integral, deterioration, change) > Peak (maximum or minimum) with respect to time > Permanent visual indication (i.e., irreversible)
Description: Subject matter wherein the determination is made using an arrangement which changes with a change in temperature in only one direction, i.e. restoring the temperature to its initial value does not restore the arrangement to its original condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607829 |
Resonance tag with temperature sensor |
Oct. 27, 2009 |
| 7571695 |
Freeze indicators, flexible freeze indicators and manufacturing methods |
Aug. 11, 2009 |
| 7517146 |
Color-retaining excess-temperature exposure indicator |
Apr. 14, 2009 |
| 7490575 |
Combination freeze indicators |
Feb. 17, 2009 |
| 7429126 |
Residual lifetime indicator for perishable consumer products |
Sep. 30, 2008 |
| 7415939 |
Temperature sensitive indicator |
Aug. 26, 2008 |
| 7360946 |
Time temperature indicators linked to sensory detection |
Apr. 22, 2008 |
| 7343872 |
Freeze indicators suitable for mass production |
Mar. 18, 2008 |
| 7331709 |
Temperature measuring method using micro temperature sensing element |
Feb. 19, 2008 |
| 7290925 |
Full history time-temperature indicator system |
Nov. 6, 2007 |
| 7287485 |
Temperature activated systems |
Oct. 30, 2007 |
| 7188996 |
Expiration indicator |
Mar. 13, 2007 |
| 7063041 |
Temperature sensor label |
Jun. 20, 2006 |
| 7011037 |
Changed condition indicator |
Mar. 14, 2006 |
| 7004621 |
Method of monitoring temperature exposure |
Feb. 28, 2006 |
| 6968804 |
Device for detecting and quantitatively measuring the exposure of an object to a predetermined temperature for a predetermined duration |
Nov. 29, 2005 |
| 6957693 |
Heat exchanger thermal indicator |
Oct. 25, 2005 |
| 6924148 |
Reactivity control in substituted diacetylenic monomer shelf life monitoring systems |
Aug. 2, 2005 |
| 6916116 |
Time or time-temperature indicating articles |
Jul. 12, 2005 |
| 6786638 |
In-situ standard for temperature indicating labels |
Sep. 7, 2004 |
| 6776521 |
Data carrier having indication means for indicating a change of a parameter influencing the data carrier |
Aug. 17, 2004 |
| 6694913 |
Changed condition indicator |
Feb. 24, 2004 |
| 6616332 |
Optical techniques for measuring parameters such as temperature across a surface |
Sep. 9, 2003 |
| 6524000 |
Time-temperature indicators activated with direct thermal printing and methods for their production |
Feb. 25, 2003 |
| 6514462 |
Time-temperature indicator devices |
Feb. 4, 2003 |
| 6512816 |
Temperature clock for x-ray tubes |
Jan. 28, 2003 |
| 6435128 |
Time-temperature integrating indicator device with barrier material |
Aug. 20, 2002 |
| 6422171 |
Temperature indicating device |
Jul. 23, 2002 |
| 6382125 |
Temperature control material and temperature control method using the same |
May. 7, 2002 |
| 6055786 |
Heat weld indicator for thermoplastic roofing membrane |
May. 2, 2000 |
| 6042264 |
Time-temperature indicator device and method of manufacture |
Mar. 28, 2000 |
| 5954010 |
Temperature sensing device for permanently indicating when a product is exposed to critical temperatures |
Sep. 21, 1999 |
| 5918981 |
Devices for rapid temperature detection |
Jul. 6, 1999 |
| RE36062 |
Steam sterilization indicator |
Jan. 26, 1999 |
| 5857776 |
Method and device for monitoring handling conditions |
Jan. 12, 1999 |
| 5795065 |
Temperature-time-pressure detector |
Aug. 18, 1998 |
| 5756356 |
Method of indicating time or temperature-time accumulated value as color change, and materials therefor |
May. 26, 1998 |
| 5752716 |
Inflator with an actuation indicator |
May. 19, 1998 |
| 5735607 |
Shape memory alloy thaw sensors |
Apr. 7, 1998 |
| 5709472 |
Time-temperature indicator device and method of manufacture |
Jan. 20, 1998 |
| 5695284 |
Thaw indicator unit and method of manufacture |
Dec. 9, 1997 |
| 5685641 |
Devices for rapid temperature detection |
Nov. 11, 1997 |
| 5662419 |
Time-temperature monitor and recording device and method for using the same |
Sep. 2, 1997 |
| 5605035 |
Rope with strain damage indicator |
Feb. 25, 1997 |
| 5597238 |
Marking element |
Jan. 28, 1997 |
| 5490476 |
Temperature indicator for deep-frozen products |
Feb. 13, 1996 |
| 5404834 |
Temperature indicating device |
Apr. 11, 1995 |
| 5378430 |
Steam sterilization process monitor |
Jan. 3, 1995 |
| 5335994 |
Temperature monitoring device containing at least one element of an alloy which memorizes its shape |
Aug. 9, 1994 |
| 5301632 |
Control sample of a deep-frozen product or a product, whose keeping temperature must be checked |
Apr. 12, 1994 |
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