William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
| Number | Title | Issue Date |
| 7674645 | Diode energy converter for chemical kinetic electron energy transfer An improved diode energy converter for chemical kinetic electron energy transfer is formed using nanostructures and includes identifiable regions associated with chemical reactions isolated chemically from other regions in the converter, a region associated with an ... | 03/09/2010 |
| 7662652 | Chemical sensor using semiconducting metal oxide nanowires Indium oxide nanowires are used for determining information about different chemicals or Biologics. Chemicals are absorbed to the surface of the nanowires, and cause the semiconducting characteristics of the Nanowires to change. These changed characteristics are sen... | 02/16/2010 |
| 7632697 | Nitride semiconductor thin film and method for growing the same The present invention relates to a nitride semiconductor thin film and a method for growing the same. The present invention has an advantage in that a plurality of grooves are formed on a substrate by partially etching the substrate, and leg portions for preventing ... | 12/15/2009 |
| 7592195 | Method for producing a sensor or actuator arrangement, and corresponding sensor or actuator arrangement In a method for producing a sensor arrangement and the resulting sensor arrangement, a sensor is provided on or in a chip and the chip is covered with a protective cover, the cover being an interface between the sensor and the environment. An adhesive layer is provi... | 09/22/2009 |
| 7582500 | Reference pH sensor, preparation and application thereof A reference pH sensor, the preparation and application thereof. The reference pH sensor is an extended gate field effect transistor (EGFET) structure and comprises a metal oxide semiconductor field effect transistor (MOSFET) on a semiconductor substrate, a sensing u... | 09/01/2009 |
| 7550310 | Techniques and systems for analyte detection Techniques are used to detect and identify analytes. Techniques are used to fabricate and manufacture sensors to detect analytes. An analyte (810) is sensed by sensors (820) that output electrical signals in response to the analyte. The electrical sign... | 06/23/2009 |
| 7501301 | Low cost fabrication of microelectrode arrays for cell-based biosensors and drug discovery methods A method for making a plurality of low-cost microelectrode arrays (MEAs) on one substrate utilizing certain unmodified printed circuit board (PCB) fabrication processes and selected materials. In some embodiments, a MEA device is composed of a thin polymer substrate... | 03/10/2009 |
| 7439562 | Process for modifying at least one electrical property of a nanotube or a nanowire and a transistor incorporating it The present invention concerns a method for modyfing at least an electronic property of a carbon nanotube or nanowire comprising exposing said nanotube or nanowire to an acid having the formula (I) wherein R1, R2 and R3 are chosen in... | 10/21/2008 |
| 7435610 | Fabrication of array pH sensitive EGFET and its readout circuit A method for fabricating an array pH sensor and a readout circuit device of such array pH sensor are implemented by utilizing an extended ion sensitive field effect transistor to construct the array pH sensor and related readout circuit. The structure of the array s... | 10/14/2008 |
| 7427526 | Deposited thin films and their use in separation and sacrificial layer applications This invention uses large surface to volume ratio materials for separation, release layer, and sacrificial material applications. The invention outlines the material concept, application designs, and fabrication methodologies. The invention is demonstrated using dep... | 09/23/2008 |
| 7416699 | Carbon nanotube devices Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube is adapted to pass current between two conductive elements. In one implementation, each conductive element incl... | 08/26/2008 |
| 7416911 | Electrochemical method for attaching molecular and biomolecular structures to semiconductor microstructures and nanostructures A method by which silicon nanostructures may be selectively coated with molecules or biomolecules using an electrochemical process. This chemical process may be employed as a method for coating many different nanostructures within a circuit, each with a different mo... | 08/26/2008 |
| 7387952 | Semiconductor substrate for solid-state image pickup device and producing method therefor A semiconductor substrate for forming a pixel area provided surfacially with a plurality of pixels for photoelectric conversion, the semiconductor substrate, including a polysilicon film of a thickness of 0.5-2.0, on a rear surface of the pixel area-bearing surface,... | 06/17/2008 |
| 7361313 | Methods for uniform metal impregnation into a nanoporous material The methods, systems 400 and apparatus disclosed herein concern metal 150 impregnated porous substrates 110, 210. Certain embodiments of the invention concern methods for producing metal-coated porous silicon substrates 110, 210 that exhi... | 04/22/2008 |
| 7356913 | Process for manufacturing a microsystem A process for making microswitches or microvalves, composed of a substrate and used for shifting between a first state of functioning and a second state of functioning by means of a bimetal-effect thermal sensor. The sensor includes a deformable element attached, at... | 04/15/2008 |
| 7354785 | Electroluminescent light emitting device An electroluminescent device having a light emitting layer (25) containing phosphor particles (31, 32), wherein the phosphor particles protrude from the light emitting layer to cause the surrounding layers to conform to the protrusions, thus increasing... | 04/08/2008 |
| 7335526 | Sensing system A ChemFET Sensing system is Described. ... | 02/26/2008 |
| 7329387 | Field-effect transistor, sensor using it, and production method thereof A sensor which has high measuring sensitivity and is excellent in response is provided by forming a porous film in a sensitive section of a field-effect transistor. It comprises a porous body, which is formed on a sensitive section (here, a gate insulating film) of ... | 02/12/2008 |
| 7323355 | Method of forming a microelectronic device A method of forming a microelectronic device (300) including the steps of forming a sensor component (100) and a capping component (200). The sensor component (100) includes a sensor structure (150, 152) and a conductive trace (... | 01/29/2008 |
| 7319046 | Integrated optoelectronic silicon biosensor for the detection of biomolecules labeled with chromophore groups or nanoparticles An integrated optoelectronic silicon biosensor that can detect biomolecules by the change of the optical coupling between the integrated light source and the integrated detector that is caused by the binding of the appropriately labeled analytes onto the recognition... | 01/15/2008 |
| 7314801 | Semiconductor device having a surface conducting channel and method of forming A semiconductor device including a metal oxide layer, a channel area of the metal oxide layer, a preservation layer formed on the channel area of the metal oxide layer, and at least two channel contacts coupled to the channel area of the metal oxide layer, and a met... | 01/01/2008 |
| 7312095 | Modification of selectivity for sensing for nanostructure sensing device arrays An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are at least two different selectivities for sensing among the nanostruct... | 12/25/2007 |
| 7309621 | Method to fabricate a nanowire CHEMFET sensor device using selective nanowire deposition A method of fabricating a nanowire CHEMFET sensor mechanism includes preparing a silicon substrate; depositing a polycrystalline ZnO seed layer on the silicon substrate; patterning and etching the polycrystalline ZnO seed layer; depositing an insulating layer over t... | 12/18/2007 |
| 7306965 | Oxygen ion conductor device, method for fabricating oxygen ion conductor device, and oxygen concentration control system A first electrode thin film is formed on an upper surface of the oxygen ion conductive thin film so as to have a through hole. A resistor is formed on part of the upper surface of the oxygen conductive thin film located in the through hole. Thus, the oxygen ion cond... | 12/11/2007 |
| 7294899 | Nanowire Filament A method of manufacturing a nanowire filament includes forming and fusing actions. In a forming action, close proximity conductors are formed. In another forming action, a junction oxide is formed between the close proximity conductors. In a fusing action, a nanowir... | 11/13/2007 |
| 7288873 | Device for emission of high frequency signals A device for emission of high frequency signals is provided. The emission device is capable of emission of signals in the Gigahertz (GHz) and Terahertz (THz) range. The device may utilize, for example, a cantilever comprising a material that is capable of altering i... | 10/30/2007 |
| 7287412 | Method and apparatus for sensing hydrogen gas A hydrogen sensor and/or switch fabricated from an array of nanowires or a nanoparticle thick film composed of metal or metal alloys. The sensor and/or switch demonstrates a wide operating temperature range and shortened response time due to fabrication materials an... | 10/30/2007 |
| 7289230 | Wireless substrate-like sensor A wireless substrate-like sensor is provided to facilitate alignment and calibration of semiconductor processing systems. The wireless substrate-like sensor includes an optical image acquisition system that acquires one or more images of targets placed within the se... | 10/30/2007 |
| 7283255 | Wireless substrate-like sensor A wireless substrate-like sensor is provided to facilitate alignment and calibration of semiconductor processing systems. The wireless substrate-like sensor includes an optical image acquisition system that acquires one or more images of targets placed within the se... | 10/16/2007 |
| 7264778 | Carbon monoxide sensor and method of use thereof Carbon monoxide sensors suitable for use in hydrogen feed streams and methods of use thereof are disclosed. The sensors are palladium metal/insulator/semiconductor (Pd-MIS) sensors which may possess a gate metal layer having uniform, Type 1, or non-uniform, Type 2, ... | 09/04/2007 |
| 7262991 | Nanotube- and nanocrystal-based non-volatile memory An embodiment is a transistor for non-volatile memory that combines nanocrystal and nanotube paradigm shifts. In particular an embodiment is a transistor-based non-volatile memory element that utilizes a carbon nanotube channel region and nanocrystal charge storage ... | 08/28/2007 |
| 7242241 | Reference circuit A reference circuit comprising first and second field effect transistors connected to form a first current mirror, and third and fourth field effect transistors connected to form a second current mirror, wherein a property of the first transistor is mismatched relat... | 07/10/2007 |
| 7237429 | Continuous-range hydrogen sensors The present invention provides for novel hydrogen sensors and methods for making same. In some embodiments, such novel hydrogen sensors are continuous-range hydrogen sensors comprising Pd—Ag nanoparticles arrayed as nanowires or two-dimensional shapes on a resisti... | 07/03/2007 |
| 7238534 | Capillary active test element having an intermediate layer situated between the support and the covering The invention concerns a device for withdrawing samples of liquid samples for analytical elements. The capillary-device channel is essentially formed by a carrier, a cover and optionally an intermediate layer between the cover and carrier. A notch is located in one ... | 07/03/2007 |
| 7235214 | System and method for measuring molecular analytes in a measurement fluid A molecular contamination monitoring system includes a piezoelectric measurement sensor exposed to a molecular constituent to be measured; a piezoelectric reference sensor; and a filter for filtering said molecular constituent, the filter located between the referen... | 06/26/2007 |
| 7226862 | Method for producing a fluid device, fluid device and analysis apparatus In the case of a method for producing a fluid device with a fluid structure having an active height, a basic wafer is provided, which comprises a supporting substrate, an insulating layer on the supporting substrate and a patterned layer on the supporting substrate,... | 06/05/2007 |
| 7223668 | Method of etching metallic thin film on thin film resistor An Al film is formed on a barrier metal covering a thin film resistor to have a first opening. A photo-resist is formed on the Al film and in the opening, and is patterned to have a second opening having an opening area smaller than that of the first opening and ope... | 05/29/2007 |
| 7211459 | Fabrication method of an ion sensitive field effect transistor An ion sensitive field effect transistor (ISFET) and a fabrication method of the same are disclosed including a non-single-crystal silicon-base substrate, a polysilicon layer, a source, a drain, an insulating layer, a first electrode, a second electrode, a passivati... | 05/01/2007 |
| 7195986 | Microfluidic device with controlled substrate conductivity A method to achieve controlled conductivity in microfluidic devices, and a device formed thereby. The method comprises forming a microchannel or a well in an insulating material, and ion implanting at least one region of the insulating material at or adjacent the mi... | 03/27/2007 |
| 7193290 | Semiconductor component and a method for producing the same A semiconductor component, such as a humidity sensor, which has a semiconductor substrate, such as, for example, made of silicon, a first electrode and a second electrode and at least one first layer that is accessible for a medium acting from the outside on the sem... | 03/20/2007 |