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Class 73/718 - Capacitive


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the devices effect a variation in
No. of applications: 81
Last issue date: 02/23/2012


1      
Application No.Application TitleIssue Date
20120042731MEMS Pressure Sensor Device and Method of Fabricating Same
A microelectromechanical systems (MEMS) pressure sensor device (20, 62) includes a substrate structure (22, 64) having a cavity (32, 68) formed therein and a substrate structure (24) having a reference element (36) formed therein. A se...
02/23/2012
20120024074SENSOR ELEMENT FOR CAPACITIVELY MEASURING DIFFERENTIAL PRESSURE
A capacitive differential pressure sensor is described which has a simple configuration, and which provides reliable measuring results even in corrosive measuring environments. The sensor element for capacitively measuring differential pressure includes a sensor diaphra...
02/02/2012
20120024073High temperature capacitive static/dynamic pressure sensors and methods of making the same
Disclosed are capacitive pressure probes or sensors for high temperature applications. The capacitive pressure sensors of the present invention include, inter alia, a sapphire diaphragm which is disposed within an interior sensing chamber of the probe housing and has a ...
02/02/2012
20110314922WIRELESS SELF-POWERED MONOLITHIC INTEGRATED CAPACITIVE SENSOR AND METHOD OF MANUFACTURE
Disclosed is a wireless self-powered monolithic integrated capacitive sensor, as well as methods of manufacturing same. A single monolithic chip may include various technologies, including RF MEMS, CMOS devices and related circuitry, and physical sensor MEMS. An example...
12/29/2011
20110308320Inductively Coupled Pressure Sensor
In one embodiment, a pressure sensor assembly for use with an application specific integrated circuit includes a capacitive sensor, a sensor coil within a first sensor compartment and operatively connected to the capacitive sensor to form a sensor L-C tank circuit, a me...
12/22/2011
20110301575IMPLANTABLE MEDICAL PUMP WITH PRESSURE SENSOR
The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosur...
12/08/2011
20110296925CAPACITIVE PRESSURE SENSOR ASSEMBLY
The disclosure is directed to a capacitive pressure sensor, and the assembly of a capacitive pressure sensor, that may be used within an implantable medical pump. In one example, a housing ferrule that encloses one capacitive plate and includes at least one protrusion f...
12/08/2011
20110296926DIFFERENTIAL PRESSURE SENSOR WITH LINE PRESSURE MEASUREMENT
A pressure sensor assembly for sensing a pressure of a process fluid includes a sensor body having a cavity formed therein and first and second openings to the cavity configured to apply first and second pressures. A diaphragm in the cavity separates the first opening f...
12/08/2011
20110271764Capacitive Pressure Sensor With Vertical Electrical Feedthroughs And Method To Make The Same
A sensing device capable of detecting pressure using micro-electro-mechanical system (“MEMS”) capacitive pressure sensor with vertical electric feed-through is disclosed. The sensing device includes a first sensing element, a second sensing element, and a sensing ci...
11/10/2011
20110232388SYSTEMS AND METHODS FOR MEASURING FLUID PRESSURE WITHIN A DISPOSABLE IV SET CONNECTED TO A FLUID SUPPLY PUMP
Systems and methods of measuring pressure of fluid in a disposable IV set connected to a fluid supply pump is disclosed. At least one sensing arrangement coupled to the fluid supply pump is provided. A chamber having a movable element is provided, the movable element co...
09/29/2011
20110185816Micromechanical sensor element for capacitive pressure detection
A micromechanical capacitive pressure sensor has a layered structure, which includes at least one deflectable carrier element for at least one deflectable measuring electrode in a first layer plane and at least one stationary carrier structure for at least one counter e...
08/04/2011
20110146410PRESSURE SENSOR INCLUDING SWITCHABLE SENSOR ELEMENTS
A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second referenc...
06/23/2011
20110126632LATERALLY INTEGRATED MEMS SENSOR DEVICE WITH MULTI-STIMULUS SENSING
A microelectromechanical systems (MEMS) sensor device (20) includes a substrate (22) having sensors (24, 26) disposed on the same side (28) of the substrate (22) and laterally spaced apart from one another. The sensor (26) inclu...
06/02/2011
20110100129MEASURING CELL AND A METHOD OF USE THEREFOR
The present invention is a measuring cell comprising a base body. Layered upon the base body is a measurement membrane having a first measuring element, a measurement device, and an intermediate membrane. The intermediate membrane is arranged between the measurement mem...
05/05/2011
20110040206IN SITU OFFSET COMPENSATION FOR PRESSURE SENSORS
A pressure sensor having a substrate and a first, deformable membrane, partially supported by the substrate, which generates a first sensor reading when deformed by pressure. A second membrane is contiguous to the first membrane. When the second membrane is energized, i...
02/17/2011
20110005323PRESSURE SENSOR
A diaphragm section has a mesh-like beam section which partitions the diaphragm section into a plurality of rectangular regions, and a thin film section formed in the region partitioned by the beam section, and the thickness of the thin film section is less than that of...
01/13/2011
20100294041MICROFABRICATED IMPLANTABLE WIRELESS PRESSURE SENSOR FOR USE IN BIOMEDICAL APPLICATIONS AND PRESSURE MEASUREMENT AND SENSOR IMPLANTATION METHODS
A variable capacitor, a microfabricated implantable pressure sensor including a variable capacitor and an inductor, and related pressure measurement and implantation methods. The inductor may have a fixed or variable inductance. A variable capacitor and pressure sensors...
11/25/2010
20100269594CAPACITIVE GAGE PRESSURE SENSOR WITH VACUUM DIELECTRIC
A field device includes a capacitive gauge pressure sensor configured to measure a gage pressure of a process media. A sensor body of the pressure sensor includes first and second chambers. The second chamber is under vacuum and forms a vacuum dielectric for the pressur...
10/28/2010
20100269595INTEGRATED DIFFERENTIAL PRESSURE SENSOR
An integrated differential pressure sensor includes, in a monolithic body of semiconductor material, a first face and a second face, a cavity extending at a distance from the first face and delimited therewith by a flexible membrane formed in part by epitaxial material ...
10/28/2010
20100241077Cannula Assemblies And Ambulatory Infusion Systems With Pressure Sensors Made Of Stacked Coplanar Layers
Cannula assemblies with pressure sensors made of stacked coplanar layers and ambulatory infusion systems comprising the same are disclosed. The cannula assemblies include a hub and an infusion cannula. The hub includes a pressure sensor and a fluid channel fluidly coupl...
09/23/2010
20100206887FUEL STORAGE SYSTEM AND METHOD FOR DETECTING A GAS PRESSURE THEREIN
A fuel storage system includes a storage vessel including a dielectric liner, a voltage sensor formed by a pair of plates disposed on opposing surfaces of the liner, and a controller configured to determine a gas pressure in the storage vessel based on voltages measured...
08/19/2010
20100186516VACUUM MEASURING CELL DEVICE HAVING A HEATER
The invention relates to a vacuum measuring cell device comprising a vacuum membrane measuring cell (8) having a connecting means (5, 6) arranged thereon for a communicating connection to the medium to be measured, an electronic system (34), which i...
07/29/2010
20100180687PRESSURE SENSOR INCLUDING SWITCHABLE SENSOR ELEMENTS
A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second referenc...
07/22/2010
20100170346SENSOR ELEMENT FOR CAPACITIVE DIFFERENTIAL-PRESSURE SENSING
A sensor design, respectively a micromechanical sensor structure for capacitive relative-pressure measurement, that will allow very small pressure differentials to be reliably recorded at high absolute pressures even in harsh, particle-laden measuring environments. For ...
07/08/2010
20100154552CAPACITANCE DIAPHRAGM GAUGE AND VACCUM APPARATUS
A capacitance diaphragm gauge includes an inclination angle sensor which detects the inclination angle of the gauge. The pressure dependences of capacitance obtained when the capacitance diaphragm gauge is mounted on a vacuum apparatus at the first inclination angle (+9...
06/24/2010
20100132472METHOD AND APPARATUS FOR PRESSURE MEASUREMENT USING FILL TUBE
A pressure sensor includes a fill tube which is arranged to couple to a process pressure. A sensor is coupled to the fill tube and is configured to measure pressure of fluid in the fill tube as a function of a change of a physical property of the fill tube. Circuitry is...
06/03/2010
20100107770CAPACITIVE PRESSURE SENSOR
A capacitive pressure includes a laminated arrangement with a first flexible, electrically insulating carrier film carrying a first capacitor electrode, a second flexible, electrically insulating carrier film carrying a second capacitor electrode and a flexible, electri...
05/06/2010
20100095777Capacitative Pressure Sensor
A capacitative pressure sensor that has a silicon substrate, CMOS layers deposited on the silicon substrate, a conductive layer deposited on the CMOS layer and, a passivation layer on the conductive layer. A conductive membrane extends from the substrate assembly such t...
04/22/2010
20100050776PRESSURE SENSOR FEATURING OFFSET CANCELLATION AND METHOD OF MAKING
A pressure sensor includes a first set of electrodes, a second set of electrodes, and a common electrode. The first and second sets of electrodes overlie an insulative surface, wherein the first set of electrodes represent sense capacitor bottom electrodes and the secon...
03/04/2010
20090320606ACCESSIBLE STRESS-BASED ELECTROSTATIC MONITORING OF CHEMICAL REACTIONS AND BINDING
A sensor may include a substrate that has a cavity formed in a surface thereof. A diaphragm, having a conductive portion, may be suspended over the cavity, a selective coating may be present on a face of the diaphragm outside of the cavity, and a counterelectrode may be...
12/31/2009
20090320605Optical Interferometric Pressure Sensor
A pressure measuring cell has a first housing body and a membrane arranged proximate the housing body, both of ceramic. The membrane has a peripheral edge joined to the first housing body to create a reference pressure chamber. A second housing body made of ceramic mate...
12/31/2009
20090308169PRESSURE SENSOR CONFIGURATIONS FOR IMPLANTABLE MEDICAL ELECTRICAL LEADS
An implantable pressure sensor, which may be incorporated within an implantable medical electrical lead, includes an insulative sidewall, which contains a gap capacitor and an integrated circuit. The insulative sidewall of the pressure sensor includes a pressure sensiti...
12/17/2009
20090293626PRESSURE SENSOR WITH TEMPERATURE COMPENSATION
The invention provides for a pressure sensor with compensation for temperature variations. The sensor has CMOS layers deposited on a substrate, a conductive layer connected to the CMOS and a passivation layer deposited on the CMOS layers. The arrangement also includes a...
12/03/2009
20090235752ELECTROSTATIC CAPACITANCE DIAPHRAGM VACUUM GAUGE AND VACUUM PROCESSING APPARATUS
In an electrostatic capacitance diaphragm vacuum gauge, a diaphragm and a detection electrode opposing the diaphragm are arranged in a vacuum. The electrostatic capacitance diaphragm vacuum gauge measures pressure by measuring the change degree of an electrostatic capac...
09/24/2009
20090205432PRESSURE SENSING SYSTEM AND METHOD
A pressure sensing system positions a microelectromechanical (MEMS) diaphragm of a MEMS pressure sensor die in a housing to indirectly sample pressure state of a fluid being measured. A second housing diaphragm is used to make direct contact with the fluid being measure...
08/20/2009
20090177096CONTACT FORCE SENSOR PACKAGE, BLOOD PRESSURE METER WITH THE SAME, AND METHOD FOR FABRICATING THE CONTACT FORCE SENSOR PACKAGE
A contact force sensor package includes a substrate layer having a vibration detection unit and a pair of first junction pads that are electrical connection ports which are provided on an upper surface of the substrate layer, a flexible circuit substrate layer having a ...
07/09/2009
20090120195Pressure sensor
A pressure transmitter is provided. The pressure transmitter includes a pressure sensor including a pair of process fluid pressure ports each having a deflectable diaphragm. A first variable capacitor is disposed within the pressure sensor and has a capacitance that var...
05/14/2009
20090064790Microreactor Glass Diaphragm Sensors
Microfluidic devices having wall structures comprised of sintered glass frit and further including a glass, glass-ceramic or ceramic membrane structure sealed by a sintered seal to said wall structures, such that a fluid passage or chamber is defined at least in part by...
03/12/2009
20080282806Electrostatic pressure sensor with porous dielectric diaphragm
A pressure sensor comprises a first pressure chamber containing fill fluid at a first pressure, a second pressure chamber containing fill fluid at a second pressure, a porous dielectric diaphragm having first and second major surfaces exposed to the first and second pre...
11/20/2008
20080223140Industrial pressure sensor having enhanced dielectric fill fluid
A capacitive pressure sensor for an industrial process transmitters comprises a housing, a sensing diaphragm, an electrode and a fill fluid. The housing includes an interior cavity and a channel extending from an exterior of the housing to the cavity. The sensing diaphr...
09/18/2008
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