| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 06/08/2005 | CN2703798Y Pipeline non-negative-pressure water supply apparatus |
| 05/26/2005 | US20050109682 Level measurement for grease separators |
| 05/26/2005 | US20050109402 Apparatus and method for operating a valve using a cushion filter |
| 05/25/2005 | CN2702348Y Stream-liquid two-phase flow self-adjusting device |
| 05/25/2005 | CN1619448A Separated two pbase flow liquid level controller |
| 05/19/2005 | US20050107922 Sieve screen level sensor |
| 05/18/2005 | CN2700930Y 水位控制器 Water Level Controller |
| 05/18/2005 | CN2700849Y Water level measurement and control apparatus |
| 05/12/2005 | US20050102058 Distributed control architecture for dispensing particulate material into a fluid medium |
| 05/11/2005 | CN2699348Y Water tower level automatic control switch |
| 05/11/2005 | CN2699347Y Floating ball type fluid level control valve |
| 05/06/2005 | CA2543311A1 Intelligent power management control system |
| 05/05/2005 | US20050096795 Wireless fluid inventory management system |
| 05/04/2005 | CN2697700Y Two-wire type water level controller |
| 05/04/2005 | CN1613038A Improved liquid level control device |
| 05/03/2005 | US6886608 Filing device for oil level regulation on oil pans in engines and transmissions |
| 04/27/2005 | CN2696014Y Floating ball rope fixing device |
| 04/27/2005 | CN1609353A Domestic intelligent water-saving device |
| 04/27/2005 | CN1199091C Automatic energy-saving water level controller for water tower |
| 04/21/2005 | US20050086341 Utility monitoring and control systems |
| 04/13/2005 | EP1522829A2 Device for detecting liquid level |
| 04/06/2005 | CN2690930Y Anti-explosion water level controller for mine |
| 04/06/2005 | CN2690929Y Magnetic sensing type water level automatic controller |
| 03/24/2005 | US20050062611 Auto shutoff overflow controller |
| 03/23/2005 | CN1598174A Water tank of closet with water lever sign |
| 03/22/2005 | US6868861 Level control system for sheet casting process |
| 03/16/2005 | CN1595322A Water level control method of water tank |
| 03/16/2005 | CN1594762A Method for flushing toilet utilizing secondary water and automatic control type pipeline system device for toilet flushing using secondary water |
| 03/09/2005 | CN2684245Y Automatic controller for reservoir pumping |
| 03/02/2005 | CN2682458Y Liquid level automatic control device |
| 02/24/2005 | WO2004095017B1 Safety device for laboratory work, especially for liquid chromatography systems |
| 02/24/2005 | US20050039796 Liquid level controller |
| 02/09/2005 | CN2677671Y Liquid level or pressure detector of intelligent start controlled for water pump |
| 02/02/2005 | CN2676260Y Electrode type high precision water level automatic controller |
| 02/02/2005 | CN1573776A Electric-power-generating-facility operation management support system, electric-power-generating-facility operation management support method, and program |
| 01/26/2005 | CN2674496Y Water level measuring controlled full-automatic water supplying device |
| 01/26/2005 | CN1186702C Vapor condensed water discharging level controlling system |
| 01/20/2005 | WO2004086154A3 Automatic water level control device with float valve using internal water pressure gravity and buoyancy |
| 01/20/2005 | US20050015283 Electric-power-generating-facility operation management support system, electric-power-generating-facility operation management support method, and program for executing support method, and program for executing operation management support method on computer |
| 01/19/2005 | EP0960365A4 Self-metering reservoir |
| 01/19/2005 | CN1567109A Dish-washing machine and its control method |
| 01/13/2005 | WO2004095017A3 Safety device for laboratory work, especially for liquid chromatography systems |
| 01/12/2005 | CN2670982Y Automatic socket style water-flow controller |
| 01/11/2005 | US6840744 Continuous liquid flow system |
| 01/06/2005 | WO2004090491A3 Measurement of molten sulfur level in receptacles |
| 01/06/2005 | US20050000573 Liquid level regulation apparatus |
| 01/05/2005 | CN2669238Y Self-pressing blocking type liquid automatic control switch |
| 01/04/2005 | US6837263 Liquid level control system |
| 12/29/2004 | CN2667539Y Automatic controlling device for water tower water level |
| 12/29/2004 | CN1182336C Self-metering solution stock tank |
| 12/22/2004 | CN1181319C Oscillation type liquid level display control alarming instrument |
| 12/15/2004 | EP1048016A4 Liquid level control system |
| 12/09/2004 | US20040247393 Method for regulating the level of a dam installation and dam installation implementing the method |
| 12/08/2004 | CN2662432Y Full-automatic water level controller |
| 12/07/2004 | US6826787 Controller |
| 12/02/2004 | WO2004104718A1 Wind power management system and method |
| 12/01/2004 | EP0891520B1 Refrigeration with a fuzzy logic liquid level control |
| 12/01/2004 | CN2660573Y Full automatic feeding controller for high building water tower |
| 12/01/2004 | CN2659986Y Cistern utilizing waste water |
| 12/01/2004 | CN2659984Y Water feeding controller with frequency conversion speed regulation |
| 11/25/2004 | US20040232163 System and method for dispensing particulate material into a fluid medium |
| 11/25/2004 | US20040231837 Food server fluid level control |
| 11/24/2004 | CN2658801Y Liquid level regulator |
| 11/24/2004 | CN2658724Y 液位传感器 Level Sensors |
| 11/23/2004 | US6821660 Gas humidification device for operation, testing, and evaluation of fuel cells |
| 11/23/2004 | CA2444027A1 System and method for dispensing particulate material into a fluid medium |
| 11/23/2004 | CA2432871A1 Distributed control architecture and improved metering apparatus and methods for agricultural chemical dispensers |
| 11/18/2004 | US20040230377 Wind power management system and method |
| 11/18/2004 | US20040226612 Apparatus and method for fluid flow control |
| 11/17/2004 | CN2657059Y Self-power liquid controller |
| 11/17/2004 | CN2656957Y Building surface pressure-resisting water level electrode device |
| 11/04/2004 | WO2004095017A2 Safety device for laboratory work, especially for liquid chromatography systems |
| 11/03/2004 | CN2653462Y 射频导纳物位控制器 RF Admittance Level Controller |
| 11/03/2004 | CN1174301C Hydraulic automatic constant water level weir |
| 10/27/2004 | CN2651795Y Automatic water level controller |
| 10/27/2004 | CN2651794Y 自动水位控制器 Automatic Water Level Controller |
| 10/27/2004 | CN2651305Y Household bathing waste water treating, circulating and utilizing systems |
| 10/21/2004 | WO2004090491A2 Measurement of molten sulfur level in receptacles |
| 10/20/2004 | EP1469138A1 Rain water collector |
| 10/20/2004 | CN2650192Y Water level automatic control device |
| 10/20/2004 | CN2650191Y Automatic level controller |
| 10/20/2004 | CN2650190Y Float type level control device |
| 10/13/2004 | EP1466223A1 Improved liquid level controller |
| 10/13/2004 | CN2648480Y Auto-temp.-controller for motor of boiler |
| 10/13/2004 | CN2647926Y Simple small full automatic indoor water supply device |
| 10/12/2004 | CA2280728C Self-metering reservoir |
| 10/07/2004 | WO2004086154A2 Automatic water level control device with float valve using internal water pressure gravity and buoyancy |
| 09/29/2004 | CN1168879C Secondary water supply system for high-level reservoir |
| 09/23/2004 | WO2003050633A8 Improved liquid level controller |
| 09/23/2004 | US20040186634 Adaptive potable water fill system for an aircraft |
| 09/22/2004 | CN2643361Y 太阳能水位控制器 Solar water level controller |
| 09/22/2004 | CN2642847Y Novel secondary water supply and storage device |
| 09/16/2004 | US20040181349 Boiler water level monitoring and control system |
| 09/16/2004 | DE10309307A1 Fluid filling condition regulation apparatus for open reservoirs, has fluid tubes and fluid compensation lines, with lower openings of pressure compensation lines closer to fluid surface than lower openings of fluid tubes |
| 09/15/2004 | EP1456533A1 Method and system for regulating the level of a dam |
| 09/15/2004 | CN2641605Y Optical fibre sensor for asphalt level monitoring |
| 09/14/2004 | CA2461120A1 Food server fluid level control |
| 09/10/2004 | WO2004077186A1 Level control for liquid throughfeed |
| 09/08/2004 | EP1261900A4 Method and system for automatically controlling water level in storage tank through wireless control process |
| 09/08/2004 | CN2639939Y Automatic controller for energy-saving and controlling water level |