...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 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 |
| 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 |
| 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 |
| 7246942 | Thermometer A liquid-in-stem thermometer comprising a stem and/or an envelope having a capillary bore extending along the length of the stem/envelopes, a bulb disposed at one end of the stem/envelope and in fluid communication with the said bore, a junction region between the c... | 07/24/2007 |
| 7237947 | Product and method for measuring temperature in flowing objects A temperature-indicating target length (15) of an expanding fluid thermometer (11) imbedded inside an object (91) moving in the flow (81) is achieved at a target point (21) along a flow and is measured by a measuring means at a loc... | 07/03/2007 |
| 7097353 | Method and device for indicating temperature Disclosed is a temperature indicating method and device. The device embodies a sealed tube containing a liquid and a float. The tube has markings on the exterior indicating temperature zones or, in the alternative, temperature gradients. The method disclosed include... | 08/29/2006 |
| 7011445 | Maximum/minimum thermometer This invention relates to maximum/minimum thermometer of the type comprising an expansion liquid, a transfer liquid and indexes for recording the maximum and minimum temperatures. Described in particular are new transfer liquids designed to replace conventionally us... | 03/14/2006 |
| 6973894 | Timing device A timing device for visually determining the passage of a preselected period of time including a tube (2) having opposed ends with at least one of the opposed ends having a reservoir (10a, 10b) for storing a reactant or an indicato... | 12/13/2005 |
| 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 |
| 5442157 | Electronic temperature controller for water heaters A control/safety apparatus and method for an electrical or fuel fired water heater includes one or more temperature sensors strategically located on the water heater vessel at a level at or above a critical water level. The time rate of temperature change... | 08/15/1995 |
| 5215378 | Dual temperature indicator A dual temperature indicator providing visual indications when exposed to predetermined high or low temperatures. The indicator has a bulb with a capillary tube and an attached high temperature indicator structure. The bulb has a first liquid which also f... | 06/01/1993 |
| 4229975 | Throwaway plastic thermometer structure A throwaway thermometer structure (10,110) comprising essentially a synthetic resin wall member (13,113) having a thin gas impermeable layer (11,111) defining the inner capillary bore (12,112) thereof. The outer wall member effectively defines a jacket an... | 10/28/1980 |
| 4222268 | Disposable thermometer A thermometer comprising: a molded plastic body member having a recess in one side forming a reservoir for a temperature indicating fluid and a relatively wide capillary passageway in fluid communication with the reservoir. Adjacent the capillary passagew... | 09/16/1980 |
| 3961532 | Disposable clinical thermometer A disposable clinical thermometer of low cost and preferably mostly of plastic includes a stiff rod-like inner member having a longitudinal groove of like configuration extending its length. A baffle or lip is formed on one end of this rod to provide a re... | 06/08/1976 |