Today In History
James McLean is issued a patent for a piano.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8128872 | Freeze indicators, components therefor and preparative processes 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 sur... | 03/06/2012 |
| 8122844 | Freeze indicators with a controlled temperature response 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 differ... | 02/28/2012 |
| 7891310 | Freeze indicators, flexible freeze indicators, combination indicators and manufacturing methods 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 indi... | 02/22/2011 |
| 7682830 | Product shelf life monitoring systems 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 t... | 03/23/2010 |
| 7624698 | Freeze indicators suitable for mass production 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... | 12/01/2009 |
| 7571695 | Freeze indicators, flexible freeze indicators and manufacturing methods 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 indi... | 08/11/2009 |
| 7517146 | Color-retaining excess-temperature exposure indicator 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 ... | 04/14/2009 |
| 7490575 | Combination freeze indicators 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 freez... | 02/17/2009 |
| 7343872 | Freeze indicators suitable for mass production 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... | 03/18/2008 |
| 7209042 | RFID tag with visual environmental condition monitor 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 e... | 04/24/2007 |
| 7161023 | Morphology control of substituted diacetylenic monomers for shelf life monitoring systems A system for recovering a diacetylenic monomer shelf life monitoring compound of reduced particle size and narrow size distribution range which comprises quenching a solution of the monomer by mixing the solution in a lower temperature quenching fluid having a base ... | 01/09/2007 |
| 7019171 | Particle size control for acetylenic agents useful in condition monitoring systems Precipitation of polyacetylenic agents can be effected with control of a particle size parameter such as mean size or spread, by mixing a warm solution of the acetylenic agent with a cold precipitation fluid and appropriate selection of a constituent of the cold pre... | 03/28/2006 |
