| 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) | 
|---|
| 05/15/2003 | WO2002035206A3 Detection of dynamic level using ultrasonic waves or microwaves  | 
| 05/15/2003 | US20030090161 Light communication channel-based electronics power distribution system  | 
| 05/15/2003 | US20030089335 Optically controlled IPCS circuitry  | 
| 05/14/2003 | EP1310778A1 Level measurement device to measure the filling level of a container  | 
| 05/14/2003 | EP1310776A2 Monitoring system for vehicle tanks  | 
| 05/14/2003 | EP1310631A2 Apparatus and method for locating a fluid interface  | 
| 05/14/2003 | EP1309820A2 Automatic refill system for ultra pure or contamination sensitive chemicals  | 
| 05/14/2003 | EP0914594B1 Piezoelectric liquid gauging device  | 
| 05/14/2003 | CN2550734Y Two-wire system transmission device for external adhesive supersonic liquid level switch  | 
| 05/14/2003 | CN2550733Y High temperature supersonic probe  | 
| 05/14/2003 | CN2550732Y Intelligent detector with multimedia interface for oil tank  | 
| 05/14/2003 | CN2550731Y 集成电路液位继电器 IC level relay  | 
| 05/14/2003 | CN2550730Y Oil level meter for transformer  | 
| 05/14/2003 | CN2550729Y Flow meter/liquid level meter indicator  | 
| 05/13/2003 | US6563328 Capacitive probe for measuring the level of an electricity-conducting liquid in a vessel  | 
| 05/13/2003 | US6563306 Method and apparatus for detecting displacement of a magnet moved in response to variation of a physical characteristic of a fluid  | 
| 05/13/2003 | US6561022 Position encoder  | 
| 05/08/2003 | WO2003038380A1 A position sensor  | 
| 05/08/2003 | US20030084938 Level control system for sheet casting process  | 
| 05/08/2003 | US20030084720 Liquid level gauge with removable hall device  | 
| 05/08/2003 | CA2452295A1 A position sensor  | 
| 05/07/2003 | EP1308085A2 Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions  | 
| 05/07/2003 | EP1068494B1 Nuclear level sensing gauge using scintillating fiber bundle  | 
| 05/07/2003 | CN2549438Y Digital open channel flowmeter  | 
| 05/07/2003 | CN1416522A Method and device for detecting and/or monitoring level of medium in container  | 
| 05/07/2003 | CN1416394A Ink and dampening solution determination in affset printing  | 
| 05/07/2003 | CN1415943A Liquid level meter with ultrasonic wave floater  | 
| 05/06/2003 | US6559657 Probe mapping diagnostic methods  | 
| 05/06/2003 | US6559397 Dishwasher float retainer for dishwasher float switch assembly  | 
| 05/06/2003 | US6558216 Land and water based flash flood detection and warning system  | 
| 05/06/2003 | US6557896 Road and rail tankers  | 
| 05/06/2003 | US6557889 Crush velocity sensing vehicle crash sensor  | 
| 05/06/2003 | US6557593 Refillable ampule and method re same  | 
| 05/06/2003 | US6557412 Non-fouling liquid level control  | 
| 05/02/2003 | EP1305581A1 Device for measuring the level of a material in a container  | 
| 05/02/2003 | EP1305577A1 Device for measuring/determining a physical quantity of a medium  | 
| 05/02/2003 | EP1305574A1 Optical transducer  | 
| 05/01/2003 | US20030081502 Method of locking onto and tracking a target  | 
| 05/01/2003 | US20030080304 Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions  | 
| 05/01/2003 | US20030079527 Measurement of the level of settled particles within a fluid vessel  | 
| 04/30/2003 | CN2548129Y Liquid-level indicating controller  | 
| 04/30/2003 | CN2548128Y Current-method bin level measuring device  | 
| 04/30/2003 | CN2548127Y Spring-type water-level meter  | 
| 04/30/2003 | CN2547559Y Fuel tank fuel-display device  | 
| 04/30/2003 | CN1414907A Apparatus for sensing fluid level in ink and water mixing device  | 
| 04/30/2003 | CN1414352A Device for measuring fuel-oil level of fuel-oil tank  | 
| 04/30/2003 | CN1413887A Closure structure with stopper  | 
| 04/30/2003 | CN1107223C Digital TV monitor system and method for dock and ship cabin  | 
| 04/30/2003 | CN1107208C Device for sensing and controlling ice level  | 
| 04/30/2003 | CA2410183A1 Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions  | 
| 04/29/2003 | US6556511 Method of locking onto and tracking a target  | 
| 04/29/2003 | US6555837 Fluoropolymer fluid overfill probe  | 
| 04/29/2003 | US6554381 System for registration of a fluid level in a receptacle  | 
| 04/29/2003 | US6553830 Fluid measuring device measuring fluid level in a container at high temperatures and/or high pressures and/or in a chemically aggressive environment using microwaves  | 
| 04/29/2003 | CA2246452C Tank level gauge and sensor head therefor  | 
| 04/24/2003 | WO2003034004A1 Device for determining the filling level of a substance in a container  | 
| 04/24/2003 | WO2003034003A1 Pivoting base weighing apparatus for gas cylinder  | 
| 04/24/2003 | WO2003033113A2 Fuel gauge for hydrogen storage media  | 
| 04/24/2003 | WO2002039126A8 Stable, reliable capacitive oil deterioration and level sensor  | 
| 04/24/2003 | US20030077491 Weight sensing system, method for use thereof, and electrochemical system for use therewith  | 
| 04/24/2003 | US20030075698 LCC-based fluid-level detection sensor  | 
| 04/24/2003 | US20030075556 Operation checking device and checking method for dispenser  | 
| 04/24/2003 | US20030074972 LCC-based strain-gage sensor integrated with cylinder-head gasket  | 
| 04/24/2003 | US20030074965 Fuel level detection device for a fuel tank  | 
| 04/24/2003 | US20030074957 Engine combustion monitoring and control with integrated cylinder head gasket combustion sensor  | 
| 04/24/2003 | CA2463652A1 Fuel gauge for hydrogen storage media  | 
| 04/23/2003 | EP1304474A1 Fuel level detecting device for fuel tanks  | 
| 04/23/2003 | CN2546862Y Infrared oil level controller  | 
| 04/23/2003 | CN2546860Y Water conservancy lony-distance measurement controlling apparatus  | 
| 04/22/2003 | US6553189 Optical guide, process cartridge, and electrophotographic image forming apparatus  | 
| 04/22/2003 | US6551558 Method and device for liquid transfer with an analysis apparatus  | 
| 04/22/2003 | US6550345 Technique for measurement of gas and liquid flow velocities, and liquid holdup in a pipe with stratified flow  | 
| 04/22/2003 | US6550326 Portable container level indicator  | 
| 04/17/2003 | WO2003031919A1 Liquid level measuring device  | 
| 04/17/2003 | US20030070487 Fuel gauge for hydrogen storage media  | 
| 04/16/2003 | EP1208431A4 Electro-statically shielded processing module  | 
| 04/16/2003 | EP0830566B1 Light beam range finder  | 
| 04/16/2003 | CN2545581Y Improved portable liquid level observer  | 
| 04/16/2003 | CN1411551A Device for determining and/or monitoring level of filling material in container  | 
| 04/16/2003 | CN1410743A Electric capacity level meter  | 
| 04/15/2003 | US6549174 Apparatus for transmitting radio-frequency signals  | 
| 04/15/2003 | US6548814 Arrangement and a method for measuring level, interface level and density profile of a fluid in tanks or containers  | 
| 04/15/2003 | US6546956 Opaque container fluid indicator  | 
| 04/15/2003 | US6546797 Absolute position measure with multi-beam optical encoding  | 
| 04/15/2003 | US6546796 Liquid level sensor  | 
| 04/15/2003 | US6546795 Wireless liquid level sensing system and method  | 
| 04/15/2003 | US6546794 Liquid level measuring apparatus and method  | 
| 04/15/2003 | CA2109032C Side-mountable liquid level sensor assembly  | 
| 04/10/2003 | WO2003029763A1 Flexible dipstick for measuring liquid level  | 
| 04/10/2003 | US20030069684 Fuel optimization system with improved fuel level sensor  | 
| 04/10/2003 | US20030068936 Land and water based flash flood detection and warning system  | 
| 04/10/2003 | US20030066566 Pug means  | 
| 04/10/2003 | CA2838176A1 Determination of sample volume adequacy in biosensor devices  | 
| 04/09/2003 | EP1299697A2 Liquid gauging apparatus using a time delay neural network  | 
| 04/09/2003 | CN2544259Y Water level electrode capable preventing wet scale conduction  | 
| 04/09/2003 | CN2543753Y Float sensor for fuel tank of car  | 
| 04/09/2003 | CN1105295C Oil level measuring device for oil tank of vehicle  | 
| 04/09/2003 | CN1105293C Method for mounting differential pressure changer  | 
| 04/08/2003 | US6545603 Measuring device using an indirect measurement of permittivity  | 
| 04/08/2003 | US6545556 Oscillating element that can be piezoelectrically excited  |