| Patents for G01L 21 - Vacuum gauges (1,613) |
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| 08/27/2009 | WO2009105506A1 Ionization gauge with operational parameters and geometry designed for high pressure operation |
| 08/20/2009 | DE102008009718A1 Verfahren und Mittel zur Enkodierung von Hintergrundrauschinformationen Methods and means for encoding background noise information |
| 08/20/2009 | DE102008009503A1 Method for measuring gas pressure in evacuated gap between panes of vacuum insulated glass of window in building, involves integrating gas-tight container into evacuated gap, where container is provided with defined internal gas pressure |
| 08/19/2009 | CN101512521A Concept based cross media indexing and retrieval of speech documents |
| 08/13/2009 | US20090200266 Template Pillar Formation |
| 08/13/2009 | US20090199649 Pirani vacuum gauge |
| 08/11/2009 | US7572697 Method of manufacturing flash memory device |
| 08/11/2009 | US7572053 Tightness test for MEMS or for small encapsulated components |
| 08/06/2009 | WO2009096504A1 Micro vacuum gauge |
| 08/06/2009 | WO2009096379A1 Heating device for pressure measurement and pressure measuring device |
| 07/30/2009 | DE102007053943B4 Wärmeleitungs-Gasdruckmeßanordnung Heat conduction Gasdruckmeßanordnung |
| 07/29/2009 | CN201281644Y Ionization vacuum gauge device with air section valve |
| 07/22/2009 | CN100517596C Method and apparatus for reducing aspect ratio dependent etching in time division multiplexed etch processes |
| 07/21/2009 | US7564246 Pressure sensor using field emission of carbon nano-tube |
| 07/16/2009 | US20090180113 Method and apparatus for identifying the chemical composition of a gas |
| 07/09/2009 | WO2009085165A2 Ionization gauge having electron multiplier cold emmission source |
| 07/09/2009 | WO2009050487A8 Acoustic source separation |
| 07/08/2009 | CN100510672C Method and device for speech enhancement in the presence of background noise |
| 07/01/2009 | EP2074400A1 Base station of a telephone system and telephone system comprising such as a base station |
| 07/01/2009 | CN101470040A Low-pressure gauge used for hazardous gas security measurement |
| 07/01/2009 | CN101470039A Hole entrance sphere taper type converter gauge |
| 06/25/2009 | DE102007062481A1 Gas pressure measuring method for e.g. window of building, involves measuring gas friction co-efficient over magnetic field power for constant rotation speed of rotor after deactivating driven magnetic field |
| 06/24/2009 | CN100505042C Multi-channel speech processor with increased channel density |
| 06/18/2009 | WO2009073958A1 Method and system for estimating parameters of a multi-tone signal |
| 06/17/2009 | CN100501362C Vacuum sensor |
| 06/16/2009 | US7548854 Architectural sound enhancement with pre-filtered masking sound |
| 06/11/2009 | US20090146665 Method and apparatus for shielding feedthrough pin insulators in an ionization gauge operating in harsh environments |
| 06/04/2009 | WO2009070387A1 Method and apparatus for bandwidth extension of audio signal |
| 06/03/2009 | CN201251497Y 真空规管保护装置 Vacuum regulatory protection device |
| 05/26/2009 | US7539614 System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes |
| 05/26/2009 | US7538556 Spot-type ionizer evaluation method and spot-type ionizer |
| 05/20/2009 | DE19723333B4 Drucksensor Pressure sensor |
| 05/20/2009 | DE112007001549T5 Verfahren und System für Qualitätsmanagement- und Analyse des Durchgangbohrens A method and system for quality management and analysis of the through drilling |
| 05/20/2009 | DE102007053944A1 Wärmeleitungs-Gasdruckmeßanordnung Heat conduction Gasdruckmeßanordnung |
| 05/20/2009 | DE102007053943A1 Thermal conduction-gas pressure measuring instrument i.e. vacuum measuring instrument, has feedback unit e.g. switching transistor, connecting and separating control signals to and from Wheatstone bridge circuit, respectively |
| 05/20/2009 | CN101435730A Method and apparatus for detecting hot pipe vacuum degree |
| 05/19/2009 | CA2291181C Method and apparatus for leak testing |
| 05/14/2009 | WO2009059654A1 Heat conducting gas pressure measurement arrangement |
| 05/14/2009 | WO2009059632A1 An encoder |
| 05/14/2009 | US20090121253 Light-emitting apparatus and method of manufacturing the same |
| 05/13/2009 | EP2057454A2 Pressure gauge for organic materials |
| 05/13/2009 | CN201237545Y Ionization vacuum meter |
| 05/07/2009 | WO2007143109A3 Concept based cross media indexing and retrieval of speech documents |
| 05/06/2009 | CN100485336C Pressure transducer with improved process adapter |
| 04/30/2009 | WO2006078851A3 End point detection method for plasma etching of semiconductor wafers with low exposed area |
| 04/28/2009 | US7526432 Apparatus and method for producing a data stream and apparatus and method for reading a data stream |
| 04/23/2009 | WO2009050487A1 Acoustic source separation |
| 04/22/2009 | CN100481308C Apparatus and method for use of optical system with a plasma processing system |
| 04/22/2009 | CN100480660C Resistive heat-loss pressure sensor and operation method thereof |
| 04/16/2009 | WO2006011954A3 Diagnostic plasma measurement device having patterned sensors and features |
| 04/16/2009 | US20090096460 Ionization vacuum gauge |
| 04/15/2009 | EP1642170A4 Systems for magnification and distortion correction for imprint lithography processes |
| 04/14/2009 | US7517468 Etching method |
| 04/07/2009 | US7514039 System and method for detection of a target substance |
| 04/02/2009 | DE102007046768A1 Verfahren und System zur Modifikation eines Notrufssystems Method and system for modification of an emergency call system |
| 04/01/2009 | EP2042849A1 Device and method for detecting high-pressure leaks using tracer gas in a part to be tested |
| 04/01/2009 | CN201215812Y Thermo cathode ionization vacuum gauge |
| 04/01/2009 | CN101398338A Vacuum detection device |
| 03/19/2009 | WO2009035123A1 Pirani gauge |
| 03/19/2009 | US20090072836 Pressure sensor using field emission of carbon nano-tube |
| 03/17/2009 | US7505911 Combined speech recognition and sound recording |
| 03/05/2009 | US20090056464 Pirani pressure gauge |
| 02/25/2009 | CN201199192Y Tester for sealing property of hydrogen-cooled generator |
| 02/25/2009 | CN201198191Y Apparatus for detecting vacuum degree of screw tube inner cavity of extruder |
| 02/25/2009 | CN101373159A Vacuum degree deficiency alarm |
| 02/19/2009 | WO2009023135A1 Apparatus for wafer level arc detection at an rf bias impedance match to the pedestal electrode |
| 02/18/2009 | CN201196596Y Low-pressure gauge used for hazardous gas security measurement |
| 02/12/2009 | WO2009019765A1 Cold-cathode ionization gauge |
| 02/11/2009 | EP2021756A1 Mems vacuum sensor based on the friction principle |
| 02/04/2009 | CN201191239Y Vacuum braking single vehicle tester for railway vehicle |
| 02/04/2009 | CN101358890A Method for on-line detecting vacuum degree of vacuum glass in service |
| 01/29/2009 | WO2009012605A2 Method for calibrating and operating a measuring cell arrangement |
| 01/27/2009 | US7481944 Etch amount detection method, etching method, and etching system |
| 01/20/2009 | US7479236 Offset correction techniques for positioning substrates |
| 01/15/2009 | US20090015264 Ionization gauge with a cold electron source |
| 01/14/2009 | EP2015046A1 Vacuum Sensor |
| 12/25/2008 | US20080315887 Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments |
| 12/18/2008 | WO2008089121A3 A thermal vacuum gauge |
| 12/11/2008 | WO2008149298A1 Pressure gauge |
| 12/11/2008 | DE102004020915B4 Druckmessvorrichtung für Vakuumanlagen Pressure measuring device for vacuum systems |
| 12/04/2008 | US20080296257 Miniature optically transparent window |
| 12/03/2008 | CN201159680Y Special bracket for arc extinguish chamber quality detection of high voltage vacuum breaker |
| 11/26/2008 | EP1623457B1 Endpoint detection in time division multiplexed processes using an envelope follower algorithm |
| 11/25/2008 | US7457454 Detailed grey scale inspection method and apparatus |
| 11/25/2008 | US7456634 Method and apparatus for shielding feedthrough pin insulators in an ionization gauge operating in harsh environments |
| 11/25/2008 | US7456633 Apparatus for and method of measuring composition and pressure of the discharged gas from ion gauge using residual gas analyzer |
| 11/25/2008 | US7455790 Emission spectroscopic processing apparatus and plasma processing method using it |
| 11/20/2008 | WO2008090541B1 Apparatus and methods for enhancement of speech |
| 11/20/2008 | WO2008016747A3 Method and system for controlling the uniformity of a ballistic electron beam by rf modulation |
| 11/18/2008 | US7454354 Hierarchical lossless encoding/decoding method, hierarchical lossless encoding method, hierarchical lossless decoding method, its apparatus and program |
| 11/18/2008 | US7452476 Method for removing coating from power unit components and device for carrying out the method |
| 11/13/2008 | US20080278173 Ionization vacuum gauge |
| 11/12/2008 | CN101303264A Ionization gage |
| 10/29/2008 | EP1984719A2 Technique for improving pirani gauge temperature compensation over its full pressure range |
| 10/29/2008 | CN101294858A On-line detection method for vacuum level of vacuum arc-quenching chamber |
| 10/28/2008 | US7443169 Shield arrangement for a vacuum cell |
| 10/23/2008 | WO2008103799A3 High-speed, precise laser-based modification of electrical elements |
| 10/22/2008 | CN100427912C Fast response ionization vacuum gauge with high anti-jamming capacity |
| 10/21/2008 | US7438765 Adjustable shielding plate for adjusting an etching area of a semiconductor wafer and related apparatus and methods |
| 10/16/2008 | DE102007014940B3 Vorrichtung zur Überwachung des Vakuums Device for monitoring the vacuum |