Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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 |
| 8177423 | Thermal history sensor utilizing electrical conductivity and magnetic permeability The present invention provides a thermal history sensor having a plurality of substrates positioned adjacent to an item. The substrates include different compositions, such that the substrates respond to thermal exposures with different changes in electrical conduct... | 05/15/2012 |
| 7429126 | Residual lifetime indicator for perishable consumer products Taught is a residual lifetime indicator for perishable consumer products, comprising a material which displays a property variable with varying temperature in accordance with a given function, actuating means which act on the material so as to make it exhibit the af... | 09/30/2008 |
| 7415939 | Temperature sensitive indicator It's a device whose purpose is to monitor the storage and indicate that a frozen product has been subjected to a thermal variation, with temperature rise, causing the fusion and liquefaction of a fluid (H) contained in the indicator. The indicator comprises a hollow... | 08/26/2008 |
| 7372780 | Timing system and device and method for making the same A timing device for indicating the passage of a duration of time is disclosed. The timing device in accordance with the embodiments of the invention comprises an electrochemical component that generates a visual and/or audio indication of the passage a duration of t... | 05/13/2008 |
| 7360946 | Time temperature indicators linked to sensory detection A thermal history indicator comprising a temperature sensitive material, a sensing device, a heat insulating material functioning to buffer the temperature sensitive material against temperature change, and an activation means. The triggering of the activation means... | 04/22/2008 |
| 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 |
| 7331709 | Temperature measuring method using micro temperature sensing element By preliminarily measuring the gallium temperature and the length change of a temperature sensing element comprising a carbon nanotube having a continuous column of gallium contained therein, then heating the temperature sensing element installed in a subject to inc... | 02/19/2008 |
| 7302846 | Temperature-sensing device for determining the level of a fluid The present invention deals with determining the level of fluid in a container. Typically, a beverage container containing a liquid will absorb heat energy from the surrounding environment at a greater rate than a gaseous component in the headspace of the beverage c... | 12/04/2007 |
| 7294379 | Color changing device for time indicating label and methods of making and using the same The present invention relates to the present invention relates to a time indicating label comprising (a) a label substrate having a first and second surface, (b) an acid-base indicator composition, and (c) an activator composition, wherein one of (b) or (c) are on t... | 11/13/2007 |
| 7290925 | Full history time-temperature indicator system A full-history time-temperature indicator system which is capable of exhibiting a time-temperature dependent and visually detectable chemical reaction, useful for monitoring the time and temperature exposure of food products. The system comprises an immobilized reac... | 11/06/2007 |
| 7287485 | Temperature activated systems A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter... | 10/30/2007 |
| 7254095 | Timing system and device and method for making the same A timing device for indicating the passage of a duration of time is disclosed. The timing device and system, in accordance with the embodiments of the invention, comprise an electrochemical component which generates a visual and/or audio indication of the passage of... | 08/07/2007 |
| 7232253 | Time indicator and method of manufacturing same A time indicator comprising a first reservoir (13), a migration medium (11) and activating means for bringing liquid from the first reservoir (13) in contact with the migration medium (11) so that after activation the liquid migrates thro... | 06/19/2007 |
| 7213967 | Method and system for conservative evaluation, validation and monitoring of thermal processing A method of generating a temperature measurement for a batch or a continuous stream of material. The method includes providing a particle having a signal that changes at a pre-determined temperature; inserting the particle into the batch or continuous stream; and de... | 05/08/2007 |
| 7208449 | Decolorable image forming material A decolorable image forming material contains a color former and a developer, that develop a colored state through interaction therebetween and can be decolored by heating or contact with a solvent, in which the developer contains two or more compounds whose deferen... | 04/24/2007 |
| 7188996 | Expiration indicator A simple recording device using a stable electric resistance heater in thermal contact with an irreversible color changing time temperature material relatively insensitive to room temperatures to show and record the cumulative time an electrical appliance, battery, ... | 03/13/2007 |
| 7185601 | Chemically sensitive warning apparatus and method A chemically sensitive warning apparatus capable of changing colors upon contact with a chemical is disclosed. The apparatus preferably comprises an elongated tape having opposed, first and second major surfaces and warning indicia visible to an individual viewing t... | 03/06/2007 |
| 7080939 | Polymeric thermal history sensor An improved thermal history sensor having multiple polymeric substrates with unique compositions is disclosed. By positioning the sensor adjacent to an item subject to thermal stressors, each of the polymeric substrates react with a different rate of crystallization... | 07/25/2006 |
| 7074280 | Method and system to represent a temperature experienced by a medical device in a medical washing machine A method and system to represent surface temperatures. The method and system represent a surface temperature experienced by a medical device during a washing cycle in a medical washing machine. A temperature strip is positioned proximate a surface of the medical dev... | 07/11/2006 |
| 7063041 | Temperature sensor label A temperature sensitive piece 9 has a waxed layer 7 formed on a colored face 4 of a colored paper 6 having an arbitrary plane shape. The waxed layer 7 is formed of a mixture of a proper amount of viscous material and powdered petro... | 06/20/2006 |
| 7011037 | Changed condition indicator A device and method of making a device for indicating a change in condition is disclosed. A first embodiment is a device for indicating a transition from a frozen condition to a thawed condition is disclosed. The device includes a housing and a capsule. A first reac... | 03/14/2006 |
| 7004620 | Method and system for conservative evaluation, validation and monitoring of thermal processing A method of generating a temperature measurement for a batch or a continuous stream of material. The method includes providing a particle having a signal that changes at a pre-determined temperature; inserting the particle into the batch or continuous stream; and de... | 02/28/2006 |
| 7004621 | Method of monitoring temperature exposure The invention is a method of monitoring the temperature to which an object has been exposed. The invention comprises combining a Time-Temperature Indicator (TTI) with an electronic monitoring device to determine whether the temperature to which the object has been e... | 02/28/2006 |
| 6968804 | Device for detecting and quantitatively measuring the exposure of an object to a predetermined temperature for a predetermined duration The inventive device comprises a housing (1) which is configured in the shape of a flat strip comprising an enclosure (6) on one side which projects outwards and contains a material (7) that changes its state or viscosity at a predetermined temp... | 11/29/2005 |
| 6957693 | Heat exchanger thermal indicator Thermal indictors of this invention are constructed for use with a heat exchanger generally comprising hot and cold side passages for accommodating a desired heat transfer therebetween. The thermal indicator is disposed at least partially within the heat exchanger a... | 10/25/2005 |
| 6924148 | Reactivity control in substituted diacetylenic monomer shelf life monitoring systems 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... | 08/02/2005 |
| 6916116 | Time or time-temperature indicating articles Time or time-temperature indicating articles are described comprising a housing enclosing: (a) a first fluid reservoir at least partially filled with a first fluid; (b) a substrate comprising a plurality of channels; (c) a second fluid reservoir in fluid communicati... | 07/12/2005 |
| 6786638 | In-situ standard for temperature indicating labels The temperature indicating surface, typically a label, includes an irreversibly fusible coating which changes from a first appearance to a second appearance in response to exposure to a threshold temperature or rated temperature. An in situ standard is provided by i... | 09/07/2004 |
| 6776521 | Data carrier having indication means for indicating a change of a parameter influencing the data carrier In a data carrier (1) having an electrical circuit (2), indication means (3) are implemented by means of the electrical circuit (2), which means are arranged so as to determine the occurrence of a change in a parameter influencing the dat... | 08/17/2004 |
| 6694913 | Changed condition indicator A device and method of making a device for indicating a change in condition is disclosed. A first embodiment of the device includes a housing and a capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it e... | 02/24/2004 |
| 6616332 | Optical techniques for measuring parameters such as temperature across a surface A sensor of a parameter such as temperature includes an indicator encapsulated within a rigid enclosure, wherein the sensor has a characteristic that varies with the parameter that is detectable upon illumination with electromagnetic radiation through a w... | 09/09/2003 |
| 6524000 | Time-temperature indicators activated with direct thermal printing and methods for their production Recording materials are converted in a direct thermal imaging apparatus to time temperature indicators by exposure to heat from the thermal print head of a direct thermal printer. Methods for converting a recording material to a time temperature indicator... | 02/25/2003 |
| 6514462 | Time-temperature indicator devices A time-temperature indicator device comprises a polymeric layer having a first and second surface and a dye composition adhered to said first surface comprising a dye which diffuses into the polymeric layer as a result of a cumulative time-temperature exp... | 02/04/2003 |
| 6512816 | Temperature clock for x-ray tubes An x-ray system 20 includes an x-ray tube insert (24) that has an evacuated envelope (34), an anode assembly (38) and a cathode assembly (40). The anode assembly (38) and the cathode assembly (40) are located in operative relationship to one another withi... | 01/28/2003 |
| 6435128 | Time-temperature integrating indicator device with barrier material A time-temperature indicator device provides a visually observable indication of the cumulative thermal exposure of an object. The device includes a substrate having a diffusely light-reflective porous matrix and a backing. The backing includes on its sur... | 08/20/2002 |
| 6422171 | Temperature indicating device A temperature indicating device utilizing a housing having an exterior and an interior which includes first and second chambers. First and second chambers communicate with one another. An opening through the housing allows communication between the interi... | 07/23/2002 |
| 6382125 | Temperature control material and temperature control method using the same Temperature control is carried out with a temperature control material comprising a temperature indicator whose developed color density differs according to temperature, which is irreversible at environmental temperature, which changes its color according... | 05/07/2002 |
| 6055786 | Heat weld indicator for thermoplastic roofing membrane A roofing membrane heat seal indicator provides a positive, visually perceptible indication that a joint or seam has been raised to a sufficiently high temperature to achieve a proper seal. The heat seal indicator is applied adjacent and parallel to an ed... | 05/02/2000 |
| 6042264 | Time-temperature indicator device and method of manufacture A time-temperature indicator label for measuring the length of time to which a product has been exposed to a temperature above a pre-determined temperature is provided. The period of time of exposure is integrated with the temperature to which the indicat... | 03/28/2000 |
| 5954010 | Temperature sensing device for permanently indicating when a product is exposed to critical temperatures A temperature sensing device for permanently indicating when a product is exposed to ambient temperatures exceeding a maximum permitted temperature of the product for a time period long enough to permanently damage the product. In an exemplary embodiment,... | 09/21/1999 |
