Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8003926 | Enhanced sample processing devices, systems and methods Devices, systems, and methods for processing sample materials. The sample materials may be located in a plurality of process chambers in the device, which is rotated during heating of the sample materials. ... | 08/23/2011 |
| 7935914 | Pressure cooker A sealed cookware and servingware object, such as a pressure cooker, is provided. The object is temperature and pressure regulated using control technology such as Radio Frequency Identification (RFID) technology and temperature sensors associated with the objects. ... | 05/03/2011 |
| 7875836 | Tag assembly for radio frequency identification controlled heatable objects Components for use in a temperature controlled heatable object are provided in which a temperature sensor is connected to a transmitter such as a Radio Frequency Identification (RFID) tag. The RFID tag is encased in a protective overmolding and connected to the temp... | 01/25/2011 |
| 7473872 | Cooking tool A heat cooking apparatus includes a supporting unit for supporting a cooking tool, a heating unit for heating the cooking tool, a receiving unit capable of receiving temperature data of the cooking tool transmitted in the form of infrared rays from the exterior, and... | 01/06/2009 |
| 7432479 | Method and apparatus for inductive heating of a food container Heating devices and methods which are particularly useful in vending machines for hot Foods. Foods such as beverages contained in individual containers such as cans are rapidly heated to serving temperature by induction heating for delivery to a customer. Various ty... | 10/07/2008 |
| 7368688 | Apparatus and method for sensing load of electric cooker A heater unit is provided, the heater unit equipped with an induction heating coil and an electric heater selectively operated based on kind and state of a load of a cooking vessel placed on the heater unit. The kind is determined by an input current inputted when a... | 05/06/2008 |
| 7365290 | Method and device for thin plate article induction heating, and thin plate article A reduction of the unevenness of a temperature increase at the end of heating work can be achieved without specific equipment, and with securing the shortening of the working time, which is an advantage of a bulk heating. When a region to be heated of an arti... | 04/29/2008 |
| 7355150 | Food preparation system with inductive power A food preparation system includes a non-contact power supply for energizing a cooking appliance. The food preparation system includes a communication system for enabling communication between a food appliance and the system. The appliance transmits an identifier to... | 04/08/2008 |
| 7227108 | Dispenser assemblies and systems including a heat storage unit A heat storage unit (2) includes a body having a passage (12) formed therein through which a flowable product passes. A heatable element (10) is incorporated within the body of the heat storage unit (2) in thermal communication with the p... | 06/05/2007 |
| 7187882 | Image fusing device with power control and image forming apparatus with same This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle al correspondin... | 03/06/2007 |
| 7173224 | Induction heating apparatus having electrostatic shielding member An induction heating apparatus with high safety is provided in which leakage current is prevented from flowing to the human body and there is no possibility of an electric shock even when an electrostatic shielding member does not sufficiently perform its function. ... | 02/06/2007 |
| 7157675 | Radio frequency identification controlled heatable objects A temperature controlled heatable object is provided in which a temperature sensor is connected to a Radio Frequency Identification (RFID) tag. The RFID tag is located within the handle of the object, and the temperature sensor is placed in contact with the object. ... | 01/02/2007 |
| 7146116 | Heat generating apparatus using electromagnetic induction When a temperature control does not operate, and a thermal runaway state occurs, the temperatures of a heating roller and a thermostat rise rapidly. When the rise in the temperature occurs such that the temperature of the thermostat reaches or exceeds a predetermine... | 12/05/2006 |
| 7139500 | Image fusing device and image forming apparatus This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle α1 | 11/21/2006 |
| 7129449 | Induction heating cooker An induction heating cooker includes an infrared sensor for sensing an infrared intensity from a load pot, a waveguide for guiding infrared radiation from the load pot to the infrared sensor, a first magnetism-proofing unit and a second magnetism-proofing unit for r... | 10/31/2006 |
| 7102109 | Induction cooking heater An induction heating cooker includes a surface, a heating coil for inductionally-heating a load pan, an inverter for supplying a high-frequency current to the heating coil, an infrared detector which detects infrared radiation emitted from the load pan and is locate... | 09/05/2006 |
| 7080593 | Controlled cooking system A controlled cooking system (CCS) that monitors, measures, and controls the internal temperature of foods placed in an oven having a Radio Frequency Identification (RFID) antenna(s), a transmitter/receiver/interrogator/reader/microprocessor (TRIRM) module and an RFI... | 07/25/2006 |
| 7076183 | Image fusing device and image forming apparatus This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle α1 | 07/11/2006 |
| 7049564 | Induction heating device The present invention offers an induction heating apparatus in which the infrared sensor performs stable temperature detection without undergoing the influence of leakage magnetic flux from the induction heating means. This induction heating apparatus has a main fra... | 05/23/2006 |
| 7041945 | Induction heater for cooking An induction-heating cooking device includes a light-transmissive cooking board on which a cooking container to be heated is to be placed; a heating coil for heating the cooking container; light emission means for emitting a light beam; and light-transmissive light ... | 05/09/2006 |
| 7038179 | Electric oven and method of controlling the same An electrical oven and method of controlling the same includes a heater heating unit to heat food using an electric heater; an induction heating unit to heat the food using a high-frequency current, and a control unit to drive the heater heating unit and the inducti... | 05/02/2006 |
| 6989517 | Apparatus and method for heated food delivery A delivery apparatus is provided by the invention. The delivery apparatus includes a container for holding an article to be delivered and a heater. The container includes a housing forming an interior area and an opening. The opening is provided with a size sufficie... | 01/24/2006 |
| 6977362 | Induction heating device with a switching power source and image processing apparatus using the same An induction heating device includes a plurality of induction coils connected to a single high-frequency power source and each being able to be ON/OFF controlled by a switch. A current is selectively fed only to desired part of the induction coils or to all of the i... | 12/20/2005 |
| 6953919 | RFID-controlled smart range and method of cooking and heating A system and method for providing multiple cooking modes and an ability to automatically heat cooking vessels and other objects using RFID technology, and an ability to read and write heating instructions and to interactively assist in their execution. An induction ... | 10/11/2005 |
| 6942383 | Cooking pan The cooking pan in which one side of an outer circumferential face of a main body is combined with a handle through a bolt fastening has such a construction that a temperature display member is equipped with an upper face of a coupling end part combined with a guide... | 09/13/2005 |
| 6904378 | Method for measuring the temperature of a metal saucepan A method for measuring the temperature of a cooking vessel or saucepan using a radiant heater. The radiant heater has a heating coil with a corresponding control and an induction coil as an inductive sensor and which is located in a metal tray. With the inductive se... | 06/07/2005 |
| 6903319 | Method and apparatus for controlling electric power for high-frequency dielectric heating A high-frequency dielectric heating power control method comprises: detecting the input current of an inverter circuit for rectifying the voltage of an AC power source to convert the rectified voltage into an AC voltage of a predetermined frequency; rectifying the d... | 06/07/2005 |
| 6861628 | Apparatus and method for heated food delivery A delivery apparatus is provided by the invention. The delivery apparatus includes a container for holding an article to be delivered and a heater. The container includes a housing forming an interior area and an opening. The opening is provided with a size sufficie... | 03/01/2005 |
| 6797297 | Indicating device and method for operating such a device An electrical cooking appliance has at least one cooktop with cooking zones becoming hot in a switched-on state, an optical residual heat indicator indicating hot cooking zones when line voltage is applied to the cooking appliance, a counter system switching off the... | 09/28/2004 |
| 6737617 | Methods and apparatus for a signal distortion based detection system Methods and Apparatus for detecting the presence of a conductor near an inductive coupling loop are disclosed. The method includes supplying an excitation to the coupling loop, measuring the signal distortion induced by the excitation signal, and monitoring the dist... | 05/18/2004 |
| 6660981 | Induction cooking device with display An induction-heating cooking device includes: an insulating plate which is partially or entirely light-transmissive, and on which an object to be heated is placed; a heating coil provided under the insulating plate, for heating the object to be heated; a ... | 12/09/2003 |
| 6566634 | Induction driven power supply for circuits accompanying portable heated items An induction heating system having an induction source, a heating element heated from the induction source and a circuit energized by the induction source. The circuit can be a controller which includes a temperature sensor for measuring a temperature of ... | 05/20/2003 |
| 6555799 | Apparatus and method for heated food delivery A delivery apparatus is provided by the invention. The delivery apparatus includes a container for holding an article to be delivered and a heater. The container includes a housing forming an interior area and an opening. The opening is provided with a si... | 04/29/2003 |
| 6534753 | Backup power supply charged by induction driven power supply for circuits accompanying portable heated container An induction heating system having an induction source, a heating element heated from the induction source, a power supply energized by the induction source and a circuit powered by the power supply. The circuit can be a controller which includes a temper... | 03/18/2003 |
| 6498325 | Modular induction heated cooking hob having reduced radiation and a method of making the same A modular induction heated cooking hob inductor and hob are disclosed. The inductor is a wound conductor having turns at substantially right angles to previous turns. Parallel turns of the conductor are separated by a layer of insulation adjacent to the t... | 12/24/2002 |
| 6483089 | Heat retentive food storage/delivery container and system A system for heating food delivery containers which comprises: a container for delivering heated food which comprises at least one food compartment having at least one self-regulating heat storage member disposed therein, wherein the self-regulating heat ... | 11/19/2002 |
| 6384387 | Apparatus and method for heated food delivery A delivery apparatus is provided by the invention. The delivery apparatus includes a container for holding an article to be delivered and a heater. The container includes a housing forming an interior area and an opening. The opening is provided with a si... | 05/07/2002 |
| 6350972 | Induction-based heated delivery container system A system for heating food delivery containers which comprises: a container for delivering heated food which comprises at least one food compartment having at least one self-regulating heat storage member disposed therein, wherein the self-regulating heat ... | 02/26/2002 |
| 6291805 | Device for induction heating of a cooking vessel A device for heating a cooling vessel for keeping warm the food contained in the vessel. A mobile support is provided for the vessel in which are arranged a supply module comprising a source of live electric energy including a high frequency voltage selec... | 09/18/2001 |
| 6274856 | Temperature self-regulating food delivery system Temperature self-regulating food delivery systems are provided having a magnetic induction heater (32, 126) and an associated food container (76, 124) equipped with an essentially permanent ferromagnetic heating element (82, 100, 128). The heater (32, 126... | 08/14/2001 |