| 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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| 10/06/1999 | EP0947812A1 Microwave operated level gauge |
| 10/06/1999 | EP0947811A1 Capacitive liquid level sensor and a container provided with such a sensor |
| 10/06/1999 | EP0946314A1 Metering oven |
| 10/06/1999 | EP0757784B1 Piezoelectric sensing method |
| 10/06/1999 | CN2342360Y Float digital level detector |
| 10/06/1999 | CN2342359Y Inner storage single well meter separator |
| 10/06/1999 | CN2342358Y Liquid level single detector capable of conducting in tube |
| 10/06/1999 | CN2342357Y Inserting direct reading liquid level meter |
| 10/06/1999 | CN2341652Y Alarm for intravenous injection |
| 10/05/1999 | US5960530 Method of making a sample liquid aspiration and dispensing probe |
| 09/30/1999 | WO1999042794A8 Device for measurement of characteristic reflection coefficient for electromagnetic waves in multiphase flour |
| 09/30/1999 | DE19841597C1 Container filling level measuring device e.g. for water tank |
| 09/30/1999 | DE19813604A1 Anordnung zur präzisen Entfernungsmessung, insbesondere zur Füllstandsmessung Arrangement for the precise distance measurement, especially for level measurement |
| 09/30/1999 | DE19809620C1 Vorrichtung zur Inhaltskontrolle eines Behälters Apparatus for controlling content of a container |
| 09/29/1999 | EP0945715A2 Arrangement for precise distance measurement, more particulary for level measurement |
| 09/29/1999 | EP0945714A1 Electronic device used in potentially explosive environment |
| 09/29/1999 | EP0944815A1 Apparatus for controlling the level of a fluid in a tank |
| 09/29/1999 | EP0944492A1 Capacitive sensor assembly |
| 09/29/1999 | EP0944364A1 Packaged photocurable composition |
| 09/29/1999 | CN2341131Y All range inspector for crude oil tank |
| 09/29/1999 | CN2341130Y Balance style magnetic level meter |
| 09/29/1999 | CN2341129Y Level alarm |
| 09/29/1999 | CN2341128Y Machine oil level sensor |
| 09/29/1999 | CN2341127Y Bypass level indicator |
| 09/29/1999 | CN1229912A Fuel gauge unit for fuel tank |
| 09/28/1999 | US5956995 Lubricant level detection system for sealed mud motor bearing assembly |
| 09/27/1999 | CA2267055A1 Arrangement for precise distance measuring, in particular for filling level measuring |
| 09/23/1999 | WO1999047899A1 Power supply device for cryogenic level indicator |
| 09/23/1999 | DE19837594C1 Test method for filling level of hot cells containing radioactive material |
| 09/23/1999 | DE19819047A1 Fuel tank for motor vehicles requiring no openings in tank wall |
| 09/23/1999 | DE19813833A1 Arrangement for securing the position of a float body with a float with a functional part in a liquid container with a variable liquid level |
| 09/22/1999 | EP0943902A1 Microwave level gauge capable of operation at high temperatures and/or high pressures and/or in a chemically agressive environment |
| 09/22/1999 | EP0943103A2 Material level sensing |
| 09/22/1999 | EP0720732B1 Two pressure measurement arrangement utilizing a dual transmitter |
| 09/22/1999 | CN1045219C 可编程序水位测控仪 Programmable Level Monitor |
| 09/21/1999 | US5955684 Modular probe |
| 09/21/1999 | US5955672 Ultrasonic blood volume measurement in soft-shell venous reservoir |
| 09/21/1999 | US5954526 Process control transmitter with electrical feedthrough assembly |
| 09/21/1999 | US5953954 Installation and method for determining the level and density of a liquid in a tank, using a single immersed bubble probe |
| 09/21/1999 | CA2175303C Device for establishing and/or monitoring a predetermined filling level in a container |
| 09/21/1999 | CA2130512C Means for and method of detecting the state of ink remain in a cartridge having containing portions differing in ink containing state |
| 09/16/1999 | WO1999046567A1 Device to indicate the level of liquid contained in a tank |
| 09/16/1999 | DE19822868C1 Gas volume detection device for liquid-filled HV apparatus e.g. HV transformer |
| 09/16/1999 | DE19810601A1 Anordnung zur Füllstandsmessung Arrangement for level measurement |
| 09/15/1999 | EP0942264A2 Arrangement for the fluid level measurement |
| 09/15/1999 | EP0941506A1 Apparatus for remote monitoring of the level of liquid in at least one tank |
| 09/15/1999 | CN2338735Y Means for protecting power device when water-break for industrial supersonic cleaning machine |
| 09/15/1999 | CN1228835A Piezoelectric liquid gauging device |
| 09/15/1999 | CN1228530A Continuous capacitance sensor |
| 09/14/1999 | US5950693 Bulk chemical delivery system |
| 09/14/1999 | US5950692 Arrangement for limiting the fill level of a fuel tank |
| 09/14/1999 | US5950487 Gauge for measuring liquid levels |
| 09/12/1999 | CA2265205A1 Level measuring arrangement |
| 09/10/1999 | WO1999045345A1 Device for regulating the contents of a container |
| 09/10/1999 | CA2249640A1 Sump pump with integrated water sensor alarm |
| 09/09/1999 | DE19909068A1 Float for arrangement detecting fluid level |
| 09/09/1999 | DE19817995C1 Filling level monitoring device for blood reservoir for medical transfusion apparatus |
| 09/08/1999 | EP0940658A1 Ultrasound sensor for detecting the level of liquids |
| 09/08/1999 | CN2337541Y Marker type floating-roof raw oil tank liquid level meter apparatus |
| 09/08/1999 | CN2337540Y Magneto sensitive switch precision floater type colour band liquid level meter |
| 09/08/1999 | CN2337539Y Float magnetic liquid level sensor |
| 09/08/1999 | CN2337538Y Intelligent bin level measuring instrument |
| 09/08/1999 | CN1045018C 感应式数字水位传感器 Inductive digital level sensor |
| 09/07/1999 | US5948979 Radar-based method of measuring the level of a material in a container |
| 09/07/1999 | US5947372 Combined fuel level monitor and thermostat |
| 09/07/1999 | US5946967 Automatic monitoring system for a separation reservoir |
| 09/07/1999 | CA2185073C Ultrasonic transducer |
| 09/02/1999 | WO1999043621A1 Method and device for controlling biological waste purification plants |
| 09/02/1999 | DE19808221A1 External mounting for filling level measuring appliance on level gauges for fluids |
| 09/01/1999 | EP0938653A1 Method for determining parameters, for example level, pressure, gas composition in closed containers |
| 09/01/1999 | EP0938649A1 Relative location detection sensor |
| 09/01/1999 | EP0683353B1 Device for controlling liquid level and driving a pump for its delivery |
| 09/01/1999 | CN2336342Y Device for measuring height of material |
| 09/01/1999 | CN2336341Y 电阻丝式液位测量装置 Resistance wire level measurement device |
| 09/01/1999 | CN2336340Y Super high pressure liquid level indicator |
| 09/01/1999 | CN2336339Y Level display alarm device for solar water storage tank |
| 08/31/1999 | US5945913 Liquid level alarm system |
| 08/31/1999 | US5943908 Probe for sensing fluid level |
| 08/31/1999 | CA2169040C Apparatus and article for determining and indicating liquid content of kegs or barrels |
| 08/26/1999 | WO1999042794A1 Device for measurement of characteristic reflection coefficient for electromagnetic waves in multiphase flour |
| 08/26/1999 | WO1999020983A3 Systems and methods using an optical sensor for liquid metering |
| 08/26/1999 | DE19806865A1 Filling level signaling unit for monitoring fluid conductible material in container, especially water in bath |
| 08/25/1999 | EP0937969A1 Apparatus for flowable bulk material |
| 08/25/1999 | EP0937231A1 Material interface level sensing |
| 08/25/1999 | CN2335133Y Precision bubble type water level meter |
| 08/25/1999 | CN2335132Y Electromagnetic type liquid metal level measuring controller |
| 08/25/1999 | CN2335102Y Water level meter for solar energy water-heater |
| 08/24/1999 | US5943294 Level detector for fluent material |
| 08/24/1999 | US5942980 Multi-sensor hydrostatic gauge for fuel storage tanks |
| 08/24/1999 | US5941090 Thermal jacket for pressurized containers |
| 08/19/1999 | WO1999035471B1 Fluid overfill probe with anti-reflective guard |
| 08/19/1999 | DE19903106A1 Fluid evacuation indicating device for fluid source |
| 08/19/1999 | DE19804998A1 Level limit switch with connecting sleeve and level sensor |
| 08/18/1999 | EP0936589A2 Geographical displacement sensing unit and monotoring apparatus using the same |
| 08/18/1999 | EP0935558A1 Suction device |
| 08/18/1999 | CN2334018Y Level indicator |
| 08/17/1999 | US5939634 Liquid measuring system and methods |
| 08/17/1999 | US5939622 Settling process analysis method |
| 08/12/1999 | WO1999040553A1 Alarm device for sensing gas quantity within pressure vessel |
| 08/12/1999 | WO1999040396A1 Level sensor for cooking apparatus |