| 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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| 06/02/1999 | DE19854896A1 Dosing device for building, chemical industry, baking etc. |
| 06/02/1999 | DE19756159C1 Sensor for detecting presence of electrically insulating fluid or loose material |
| 06/02/1999 | DE19750620A1 Determining liquid level in closed tank |
| 06/02/1999 | CN2322132Y Liquid level indicating alarm device |
| 06/02/1999 | CN1218123A Water level control apparatus using piezo film sensor for washing machine |
| 06/01/1999 | US5908985 Microprocessor-based liquid sensor and ice detector |
| 05/27/1999 | WO1999026044A1 A level detector |
| 05/27/1999 | DE19751210A1 Level measuring arrangement for fluid reservoir |
| 05/25/1999 | US5907278 For measuring characteristics of motor oil in a vehicle |
| 05/25/1999 | US5907112 For use with a process instrument |
| 05/25/1999 | US5906795 Pipetting apparatus |
| 05/20/1999 | WO1999024811A1 Liquid level gauge |
| 05/20/1999 | WO1999024794A1 Device for determining the contents of a tank chamber of a multi-chamber tank vehicle |
| 05/20/1999 | WO1999024793A1 Liquid level detector |
| 05/20/1999 | DE19800131C1 Apparatus to detect and measure contents of miniature vessels |
| 05/20/1999 | DE19751229A1 Level measurement arrangement for compressed gas bottles, e.g. beer containers and other opaque vessels |
| 05/20/1999 | DE19747737A1 Device for determining fullness of fluid esp. oil level in vehicle |
| 05/19/1999 | EP0917158A1 Conductor burnishing |
| 05/19/1999 | EP0916930A1 Capacitive measurement circuit for measuring the level of the contents of a container |
| 05/19/1999 | CN2319793Y Float liquid level indicator |
| 05/19/1999 | CN2319792Y Small measuring range fluid level sensor |
| 05/19/1999 | CN1216824A Combination type device for indicating real water level of boiler |
| 05/17/1999 | CA2217922A1 Fluid level indicator for maple water boiler |
| 05/14/1999 | WO1999022993A2 Non-contact ultrasonic micromeasurement system |
| 05/14/1999 | WO1999022880A1 Substrate treatment promoting shedding of oil |
| 05/12/1999 | EP0914594A1 Piezoelectric liquid gauging device |
| 05/12/1999 | EP0914593A1 Microprocessor based apparatus and method for sensing fluid level |
| 05/12/1999 | EP0914591A1 Fluid flow measurement correcting system, and methods of constructing and utilizing same |
| 05/12/1999 | EP0644999B1 Fill-level indicator |
| 05/12/1999 | CN2318619Y Vortex metal surface position detection device |
| 05/12/1999 | CN2318618Y Display device for water level of water tower |
| 05/12/1999 | CN2318617Y Multifunction water level alarm for boiler |
| 05/12/1999 | CN2317869Y Negative-pressure suction device with liquid-level self-control switch |
| 05/12/1999 | CN1216351A Pressure difference balance container |
| 05/11/1999 | US5903223 Humidifier control system |
| 05/11/1999 | US5901603 Liquid level monitor |
| 05/11/1999 | US5901559 Method of operating an oil lever regulator system |
| 05/10/1999 | CA2246765A1 Conductor burnishing |
| 05/06/1999 | WO1999013299A3 Liquid level sensor |
| 05/06/1999 | WO1999012005A3 Shield for a sight gauge |
| 05/06/1999 | EP0913672A1 Transducer assembly |
| 05/06/1999 | EP0913671A1 Method and device for liquid transfer in an analyzer |
| 05/06/1999 | EP0855018A4 Inductive sensor for monitoring fluid level and displacememt |
| 05/06/1999 | EP0842441A4 High accuracy electronic material level sensor |
| 05/05/1999 | CN2317471Y Pressure float of magnetic float liquid level sensor |
| 05/05/1999 | CN2317470Y Fibre-optical point-mode liquid level gauge |
| 05/05/1999 | CN2317469Y Double colour liquid level gauge with prism tube |
| 05/04/1999 | US5900810 For measuring characteristics of motor oil in a vehicle |
| 05/04/1999 | US5900546 Liquid level indicator for storage tank |
| 05/04/1999 | US5900535 Method and apparatus for ultrasonic measurement of fuel quantity and density |
| 05/04/1999 | US5900291 Non-light penetrating phlebotomy tube with temperature sensitive level indicator |
| 05/04/1999 | US5899962 In a process control system |
| 05/04/1999 | US5899111 Remote water level detector for a fire truck |
| 04/30/1999 | CA2252281A1 Improved magnetic indicator for fluid level sensor |
| 04/29/1999 | WO1999020986A1 Level sensor |
| 04/29/1999 | WO1999020985A1 Improved filtering device, in particular for motor vehicle fuel indicator |
| 04/29/1999 | WO1999020983A2 Systems and methods using an optical sensor for liquid metering |
| 04/29/1999 | WO1999020982A2 System for measuring materials in a vessel |
| 04/28/1999 | EP0910797A1 Device for monitoring the useful properties of fluids, in particular pressure fluids in fluid-technical installations |
| 04/27/1999 | US5898376 Modular overfill alarm assembly for vented storage tanks |
| 04/27/1999 | US5898374 Sump alarm with radon detection |
| 04/27/1999 | US5898308 Time-based method and device for determining the dielectric constant of a fluid |
| 04/22/1999 | DE19746276A1 Filling level sensor |
| 04/21/1999 | CN2315547Y Magnetic turn-over column level meter |
| 04/21/1999 | CN2315546Y Double high level detector |
| 04/21/1999 | CN2315545Y Multi-point thermal effect level meter |
| 04/21/1999 | CN2315544Y Slide tube level meter |
| 04/21/1999 | CN2315543Y Level indicator |
| 04/21/1999 | CN1214450A 料位传感器 Level sensors |
| 04/20/1999 | US5895848 Apparatus and method for level sensing in a container |
| 04/20/1999 | US5894611 Waterproof bath water level audio alarm |
| 04/15/1999 | DE19744916A1 Kettle with filling level detector |
| 04/14/1999 | CN2314354Y Float glass tube level meter |
| 04/14/1999 | CN2313592Y Infusion alarm |
| 04/14/1999 | CN2313591Y Automatic acoustic alarm for infusion |
| 04/13/1999 | US5894089 Method and device for detecting a liquid level in a container |
| 04/08/1999 | WO1999017085A1 An arrangement and a method for measuring level, interface level and density profile of a fluid in tanks or containers |
| 04/08/1999 | WO1999016535A1 Indicator arrangement for air cleaner systems and methods thereof |
| 04/08/1999 | WO1999006788A3 Distance measuring device and method for determining a distance |
| 04/08/1999 | DE19741892A1 Monitoring level and quality of e.g. hygroscopic brake fluid or motor oil with special reference to its boiling point |
| 04/08/1999 | CA2301906A1 Indicator arrangement for air cleaner systems and methods thereof |
| 04/07/1999 | EP0907071A1 Sensor device for determining limiting filling levels of a liquid in a container |
| 04/07/1999 | EP0907070A1 Level indicator, in particular for a combustion engine cooling circuit of a motor vehicle |
| 04/07/1999 | CN2313212Y Float-type infrared telemetering level meter |
| 04/07/1999 | CN2313211Y Water-level gauge of solar water-heating device |
| 04/06/1999 | US5891382 Recoating of stereolithographic layers |
| 04/06/1999 | CA2004142C A method and system for measuring a vertical densily profile of a fluid |
| 04/01/1999 | WO1999015861A1 Apparatus for the measurement of liquid flow |
| 03/31/1999 | EP0905498A1 Process and apparatus for generation of at least one alarmsignal related to level inside of a storage tank |
| 03/31/1999 | EP0905489A1 Method and apparatus for determining the contents of a gas bottle |
| 03/31/1999 | EP0904526A1 Method and apparatus for monitoring operational performance of fluid storage systems |
| 03/30/1999 | US5889284 Liquid level gauge having p-c board enclosed within probe |
| 03/30/1999 | US5887616 Liquid tank |
| 03/30/1999 | US5887479 Liquid-level gauge driver circuit |
| 03/30/1999 | CA2115596C Capacitive proximity monitoring device for corrosive atmosphere environment |
| 03/25/1999 | WO1999014564A1 Method for producing a float, fuel-resistant float and use of particles compressed together, obtained by extrusion |
| 03/25/1999 | WO1999014563A2 Lubricant level detection system for sealed mud motor bearing assembly |
| 03/25/1999 | WO1999014562A1 Ultrasound sensor for detecting the level of liquids |
| 03/25/1999 | WO1998057186A3 Dual compartment instrument housing |
| 03/25/1999 | DE19741324A1 Boiling water reactor filling level measurement |