1
Jean Paul Martin, Frederick R Grabiner: RFID tag with visual environmental condition monitor. Temptime Corporation, Kirpatrick & Lockhart Nicholson Graham, April 24, 2007: US07209042 (47 worldwide citation)

A combination RFID tag intended to be associated with a host product, for example by being secured to the outside of a package containing a perishable product, e.g. foodstuffs or vaccines, which RFID tag is provided with a visually readable environmental condition exposure indicator. The visual indi ...


2
Carl Lentz, Dawn E Smith, Dene H Taylor: Freeze indicators, components therefor and preparative processes. Temptime Corporation, K&L Gates, March 6, 2012: US08128872 (42 worldwide citation)

Freeze indicators can include an indicator dispersion, a liquid medium, indicator particles dispersed in the liquid medium and a particulate inorganic nucleating agent to inhibit supercooling of the liquid medium. The inorganic nucleating agent can have an ionic surface coating which can help provid ...


3
Dene H Taylor, Thaddeus Prusik, Dawn Smith: Combination freeze indicators. Temptime Corporation, K & L Gates, February 17, 2009: US07490575 (24 worldwide citation)

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 i ...


4
Dene H Taylor, Thaddeus Prusik, Dawn Smith: Freeze indicators suitable for mass production. Temptime Corporation, Kirkpatrick & Lockhart Preston Gates Ellis, March 18, 2008: US07343872 (22 worldwide citation)

A freeze indicator employs, as active indicator element, dispersion of solid particles in a liquid medium which can be water or aqueous and which coagulates to provide an irreversible appearance change when subject to freezing. The liquid dispersion can be contained in an indicator volume around whi ...


5
Dawn E Smith, Thaddeus Prusik, Omar Abbassi: Color-retaining excess-temperature exposure indicator. Temptime Corporation, K&L Gates, April 14, 2009: US07517146 (18 worldwide citation)

An excess temperature indicator can provide a visual indication of past exposure of perishable, maturing and other host products to an elevated temperature exceeding a threshold temperature. The indicator can have an upper layer provided with a viewing window and a wick attached to the upper layer. ...


6
Dene H Taylor, Thaddeus Prusik, Dawn E Smith, Ray H Baughman: Freeze indicators, flexible freeze indicators and manufacturing methods. Temptime Corporation, K&L Gates, August 11, 2009: US07571695 (17 worldwide citation)

Freeze indicators providing a visual indication of exposure of the freeze indicator to a freezing or near-freezing temperature and their manufacture are disclosed. The freeze indicators employ colloidal dispersions as active elements and include flexible freeze indicators, freeze indicators protecte ...


7
Dene H Taylor, Thaddeus Prusik, Dawn E Smith, Ray H Baughman: Freeze indicators, flexible freeze indicators, combination indicators and manufacturing methods. Temptime Corporation, K&L Gates, February 22, 2011: US07891310 (13 worldwide citation)

Freeze indicators providing a visual indication of exposure of the freeze indicator to a freezing or near-freezing temperature and their manufacture are disclosed. The freeze indicators employ colloidal dispersions as active elements and include flexible freeze indicators, freeze indicators protecte ...


8
Thaddeus Prusik: Reactivity control in substituted diacetylenic monomer shelf life monitoring systems. TEMPTIME Corporation, Kirkpatrick & Lockhart Nicholson Graham, Anthony H Handal, August 2, 2005: US06924148 (12 worldwide citation)

A product shelf life monitoring system comprising an active substituted diacetylenic monomer component indicator composition is responsive to an integral of varying temperature over time to effect a solid state polymerization in the active monomer which results in a visible change in color density o ...


9
Thaddeus Prusik, Allan P Piechowski: Product shelf life monitoring systems. Temptime Corporation, K&L Gates, March 23, 2010: US07682830 (10 worldwide citation)

A product shelf life monitoring system comprises a label substrate bearing upon a limited portion of its area an active indicator composition responsive to varying temperature over time to effect a visible change in color density or the like. The susceptibility of the indicator composition to simila ...


10
Dawn E Smith, Carl M Lentz, Dene H Taylor, Yvonne Osunga, Brian Huffman: Freeze indicators with a controlled temperature response. Temptime Corporation, K&L Gates, February 28, 2012: US08122844 (8 worldwide citation)

A freeze indicator can include an indicator dispersion having an aqueous liquid medium and organic material indicator particles dispersed in the aqueous liquid medium. The indicator dispersion can have an initial appearance before freezing and an irreversibly different appearance after freezing and ...