| Patents for G01F 23 - Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm (31,056) |
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| 12/16/2009 | CN101603848A Liquid level and temperature sensor |
| 12/16/2009 | CN101603780A Totally-enclosed recovery system for steam condensate |
| 12/16/2009 | CN101603735A Heat pump water heater capable of ultrasonic water level detection |
| 12/16/2009 | CN101601891A Method and device for controlling refrigeration of water chiller of magnetic therapy apparatus |
| 12/16/2009 | CN100570289C Optical fluid level encoder |
| 12/16/2009 | CN100570288C Device for the capacitive determination and/or monitoring of a fill-level |
| 12/16/2009 | CN100570287C Built-in pressure sampling method for differential pressure levelmeter |
| 12/15/2009 | US7631556 Empty fuel level detection cross-check |
| 12/10/2009 | WO2009148476A1 On-line absolute viscosity measurement system |
| 12/10/2009 | WO2009148397A1 High sensitivity frequency modulated radar level gauge system |
| 12/10/2009 | WO2009148233A2 Level sensor |
| 12/10/2009 | WO2009147320A1 Device for monitoring the fuel level in a tank of a vehicle |
| 12/10/2009 | WO2009146724A1 Electromagnetic flowmeter and method with full pipe detection by the help of third electrode |
| 12/10/2009 | WO2002068916A9 Gear assembly with alignment feature and level sensor employing the same |
| 12/10/2009 | US20090303059 Method and apparatus for determining level of material in a container |
| 12/10/2009 | US20090301190 Capacitive sensor assembly for determining relative position |
| 12/10/2009 | US20090301189 Capacitive sensor assembly for determining level of fluent materials |
| 12/10/2009 | US20090301188 Self-Calibrating Capacitive Transducer for Determining Level of Fluent Materials |
| 12/10/2009 | US20090301187 Multichamber ultrasonic sensor for determining a liquid level |
| 12/10/2009 | US20090301186 Engine oil level detecting device |
| 12/10/2009 | DE19834165B4 Kraftstoffvorratsanzeige für einen Kraftstoffbehälter eines Kraftfahrzeuges Fuel gauge for a fuel tank of a motor vehicle |
| 12/09/2009 | EP2131165A1 Oil level detecting switch |
| 12/09/2009 | EP2131164A1 A method and apparatus for determining level of material in a container |
| 12/09/2009 | EP2130006A1 Ultrasonic level measurement apparatus and method having variable transmit power |
| 12/09/2009 | CN201359545Y Liquid measuring device |
| 12/09/2009 | CN201359401Y Indirect scale-free water level device |
| 12/09/2009 | CN201358135Y Electrolysis multifunctional machine set automatic feeding device |
| 12/09/2009 | CN201356939Y Fire water supply equipment control cabinet with flood-proof alarm device |
| 12/09/2009 | CN201356375Y Cup with inductor |
| 12/09/2009 | CN101598589A Device for itinerantly measuring blast furnace charge level |
| 12/09/2009 | CN101598588A Digital water level reader |
| 12/09/2009 | CN101598587A Multi-water level vegetation evapotranspiration measuring device |
| 12/09/2009 | CN101596928A Water depth surveying boat |
| 12/09/2009 | CN100567711C Engine oil level detection system |
| 12/09/2009 | CA2668237A1 System and method for measuring an analyte in a sample |
| 12/08/2009 | US7630839 Fluid detector recognizing foam and surge conditions |
| 12/08/2009 | US7630469 Method for on-line evaluation of materials using prompt gamma ray analysis |
| 12/08/2009 | US7629800 Water level measurement system |
| 12/08/2009 | US7628067 Electrode rod for detecting water-level, method of detecting water-level, method of controlling water-level in a boiler, and method of controlling water-level in a steam separator |
| 12/08/2009 | CA2629960C Apparatus and method for improving the accuracy of measurements taken with a capacitance-type sensor |
| 12/03/2009 | WO2009146308A1 Multi-level liquid level magnetic sensor |
| 12/03/2009 | US20090299662 Evaluation of an Echo Shape of Filling Level Sensors |
| 12/03/2009 | US20090299660 Method and System to Identify Utility Leaks |
| 12/03/2009 | US20090299659 Method for determining the total leak rate of systems impinged upon by pressure,and control apparatus for carrying out said method |
| 12/03/2009 | US20090299277 Infusion pump assembly |
| 12/03/2009 | US20090293610 Flexible Guided Wave Level Meter Probe |
| 12/03/2009 | US20090293609 Measurement device and method of measuring fluid level |
| 12/03/2009 | US20090293608 Apparatus for Measuring a Filling Level |
| 12/03/2009 | US20090293607 Liquid level measurement device |
| 12/03/2009 | DE102008025526A1 Sensor for detecting achievement of pre-determined filling level of liquid in liquid reservoir, has metallic housing and element extending out from housing |
| 12/03/2009 | DE102008022363A1 Verfahren und Vorrichtung zur Überwachung des Füllstands einer Flüssigkeit in einem Flüssigkeitsbehälter A method and apparatus for monitoring the level of a liquid in a liquid container |
| 12/03/2009 | DE102008015349A1 Ultrasonic transmitting and receiving device for use as ultrasonic level sensor, has adhesive layer having specific mechanical shear stress firmness, such that mechanical oscillations are transferred between piezoelement and coupling plate |
| 12/02/2009 | EP2128576A1 Evaluation of an echo shape of filling level sensors |
| 12/02/2009 | EP2128575A1 Sensor for liquids |
| 12/02/2009 | EP2127746A1 Liquid level control method of ion exchange resin column, its liquid level control system and interface level sensor |
| 12/02/2009 | EP2126612A1 Fluid level sensing device and methods of using same |
| 12/02/2009 | CN201355268Y Material level measuring device suitable for different length measurement requirements |
| 12/02/2009 | CN201355267Y Liquid level measuring device suitable for different length measurement requirements |
| 12/02/2009 | CN201355266Y 液位测量装置 Level measuring device |
| 12/02/2009 | CN201355265Y Oil level sensor |
| 12/02/2009 | CN201355264Y Water level sensor for household appliances |
| 12/02/2009 | CN201355256Y Motorcycle fuel gauge |
| 12/02/2009 | CN201354273Y Motor-driven air lock discharge controller |
| 12/02/2009 | CN101593873A Dielectric antenna |
| 12/02/2009 | CN101592514A Evaluation of an echo shape of filling level sensors |
| 12/02/2009 | CN101592513A Ocean engineering sink tank water level monitor |
| 12/02/2009 | CN101592512A Water level sensing system for oscillation frequency output |
| 12/02/2009 | CN101592511A Self-flushing method and self-flushing device for water level gauge |
| 12/02/2009 | CN101592368A Indoor machine of air conditioner |
| 12/02/2009 | CN100565131C Depth determination system |
| 12/02/2009 | CN100565130C Heat-sensitive digital level transducer |
| 12/02/2009 | CN100565129C Mobile wireless digital water level monitoring station system |
| 12/02/2009 | CN100565120C Measuring instrument |
| 12/02/2009 | CN100563780C Apparatus and methods for monitoring water consumption and filter usage |
| 12/01/2009 | US7624713 Mounting structure for an oil level sight glass for an internal combustion engine and engine incorporating same |
| 12/01/2009 | US7624634 Environmental-state determination apparatus |
| 11/26/2009 | WO2009142595A1 Multi-channel radar level gauge system |
| 11/26/2009 | WO2009142508A1 System for real time long-term recording and/or real time spectroscopy of a discharged urine amount from a patient |
| 11/26/2009 | WO2009141135A1 Method and device for a high precision measurement of a characteristic of a fouling and/or scaling deposit inside a fluid vessel or of a characteristic of a portion of the wall inside a fluid vessel by using an ultrsonic transducer |
| 11/26/2009 | US20090290452 Method of operating an acoustic pulse echo ranging system |
| 11/26/2009 | US20090288483 Water level & temperature indicator |
| 11/26/2009 | US20090288482 Fill Level Measuring in Mobile Containers or Transport Silos |
| 11/26/2009 | DE102008020897A1 Device for confirming filling level mode of transparent filling medium in beverage case, has interface controlled to provide confirmation about filling condition of container to person, when person approach is detected |
| 11/26/2009 | DE102005062813B4 Füllstandmessanordnung mit einer Sicherheitsabschaltung bei hohen Temperaturen Level measurement arrangement with a safety shutdown at high temperatures |
| 11/26/2009 | DE102005031987B4 Schwimmergesteuerter Niveauschalter für Flüssigkeiten Float level switch for liquids |
| 11/25/2009 | EP2124073A1 Acoustic pulse echo ranging system using pulses at different frequencies |
| 11/25/2009 | EP2124023A1 Electric or electronic level sensor |
| 11/25/2009 | EP2124018A1 Filling level measuring in mobile containers or transport silos |
| 11/25/2009 | EP2122389A1 Fluid level measuring method and system therefor |
| 11/25/2009 | CN201352142Y Pillar-turning liquid level meter |
| 11/25/2009 | CN201352141Y Automobile fuel tank digital display |
| 11/25/2009 | CN201352140Y Oil-water interface measuring device of oil well crude oil metering tank |
| 11/25/2009 | CN201352139Y Blowing type liquid level automatic display device |
| 11/25/2009 | CN201352138Y Damping device for detecting remaining fuel of fuel tank |
| 11/25/2009 | CN201352137Y Water flowing prompter for blind people to have a bathe |
| 11/25/2009 | CN201351629Y Monitoring control device of leakage liquid of submerged pump |
| 11/25/2009 | CN201349857Y Transparent buoy teacup |
| 11/25/2009 | CN101586982A Device and method for detecting position of object |
| 11/25/2009 | CN101586981A Constant-flow bubble type automatic water level measurement device with micro power consumption |
| 11/25/2009 | CN101586980A Liquid level measurement device |