| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 05/14/2008 | CN201060416Y Piston type liquid level controller |
| 05/14/2008 | CN201060415Y Floating ball water level controller |
| 05/14/2008 | CN201059793Y Solar water heater water storing bucker |
| 05/14/2008 | CN201059005Y Drainage system |
| 05/14/2008 | CN201059002Y Public building waste water reutilizing system |
| 05/14/2008 | CN201059001Y Environment protection water storage tank |
| 05/14/2008 | CN101178266A Solar water heater water-level control apparatus |
| 05/14/2008 | CN100388147C Self-operated liquid controller |
| 05/07/2008 | CN201056732Y Automatic pollution discharging device |
| 05/07/2008 | CN100386704C Separated two pbase flow liquid level controller |
| 04/30/2008 | EP1604252B1 Level control for liquid throughfeed |
| 04/30/2008 | CN201053774Y Double tube type instant type solar energy water heater |
| 04/30/2008 | CN201053304Y Intelligent oil extraction control device |
| 04/30/2008 | CN101169662A External-placed type supersonic liquid level monitoring and alarming device |
| 04/30/2008 | CN101169661A Liquid level induction control device and electric appliance possessing the liquid level induction control device |
| 04/30/2008 | CN101169660A Liquid level remote-control method |
| 04/23/2008 | CN201050092Y Indoor waste water utilization system |
| 04/23/2008 | CN201050091Y Household waste water utilization device |
| 04/23/2008 | CN201050087Y Country house water supply automatic controlling device |
| 04/23/2008 | CN201050083Y Building rain water collecting system for washing toilet |
| 04/23/2008 | CN201048790Y Cup for blind person |
| 04/23/2008 | CN101165284A Recovery utilization apparatus for roof rain water |
| 04/16/2008 | CN201048108Y Externally-controlled float ball level switch |
| 04/16/2008 | CN201047913Y Oil level automatic control device of deep buried oil trap |
| 04/16/2008 | CN201047115Y Automatization disintegrating system in waste pipe |
| 04/16/2008 | CN201047094Y Family sewage water recycling device |
| 04/09/2008 | CN101158288A Flame-proof and safety type digitisation automatically drain system for mining |
| 04/08/2008 | US7356427 Methods and systems for estimating a nominal height or quantity of a fluid in a mixing tank while reducing noise |
| 04/08/2008 | US7356384 Load management system |
| 04/02/2008 | CN201044053Y Slide control device with adjustable floating ball water stage |
| 04/02/2008 | CN201043295Y Domestic water-saving device with wastewater recovery function |
| 04/02/2008 | CN201043283Y Wastewater for life treatment equipment |
| 04/01/2008 | US7353075 Manufacturing system and controller, controlling method, controlling system, and control program for the manufacturing system |
| 03/26/2008 | CN201041637Y An infrared induction liquid level control device |
| 03/26/2008 | CN201040854Y Full-automatic frequency conversion constant-voltage water-supping device |
| 03/26/2008 | CN101149624A Multifunctional water level controller |
| 03/26/2008 | CN101148907A Displacement-reducing water-saving device |
| 03/26/2008 | CN101148897A Peculiar smell resisting backflow-proof waterpower self-controlling device |
| 03/19/2008 | CN201037465Y Fuel oil double-feeding return circuit redundancy arrangement |
| 03/19/2008 | CN201037257Y Equipment for reutilizing wastewater |
| 03/19/2008 | CN201037256Y Full-water switching control apparatus |
| 03/19/2008 | CN101147033A Heat pump system with assistant water heating |
| 03/19/2008 | CN101144285A Experiment device for simulating house draining system and detecting method thereof |
| 03/12/2008 | EP1740283A4 Fully automated water processing control system |
| 03/12/2008 | CN201035418Y Automatic water level controller |
| 03/12/2008 | CN201035417Y Mutual emission blocking type liquid level automatic control system |
| 03/12/2008 | CN201035416Y Water injecting device of solar water heater |
| 03/12/2008 | CN201035415Y Automatic water supply controller for water tower and solar water heater |
| 03/12/2008 | CN201035414Y Liquid level controller |
| 03/12/2008 | CN201034085Y Water-tower and pool auto-pumping controller |
| 03/12/2008 | CN201033888Y Toilet seat and waterway system |
| 03/05/2008 | CN201031434Y Moderate water recycling toilet-flushing water saving device |
| 03/05/2008 | CN100373279C Automatic water compensation device of electric steamer |
| 02/28/2008 | US20080051943 Apparatus for calculating detection error of fresh air quantity detection device |
| 02/28/2008 | US20080050287 Chemical reaction apparatus |
| 02/27/2008 | CN101131590A Liquid level control system |
| 02/26/2008 | US7337041 Feedback control methods and apparatus for electro-pneumatic control systems |
| 02/20/2008 | CN201025703Y Photoelectric liquid level switch |
| 02/20/2008 | CN201024514Y Domestic classified water supply system |
| 02/20/2008 | CN201024486Y Water-saving faeces flushing device |
| 02/20/2008 | CN201024460Y Full-automatic waste water reusing device |
| 02/20/2008 | CN201024457Y Water saving device for toilet |
| 02/20/2008 | CN201024449Y Automatic control regulating water tank |
| 02/20/2008 | CN201024448Y Automatic water storage and supply device |
| 02/20/2008 | CN201024444Y Double insurance building roof water-accumulating pool automatic control device |
| 02/20/2008 | CN101126248A Automatic water-saving system with energy-consumption |
| 02/20/2008 | CN100370385C Method for identifying boiler drum level model |
| 02/14/2008 | US20080039976 Method of controlling the opening of door of laundry treatment machine |
| 02/13/2008 | CN201021983Y A water level controller |
| 02/13/2008 | CN201020295Y Rectification tower |
| 02/13/2008 | CN101122144A Automatic circulation water-supplying marsh gas public lavatory |
| 02/06/2008 | CN201017813Y Automatically water-supply control switch |
| 02/06/2008 | CN201017243Y Oil tank liquid level control device |
| 02/06/2008 | CN201017242Y Foundation pit water level automatic monitoring system |
| 02/06/2008 | CN201017241Y Intelligent liquid level monitoring apparatus |
| 02/06/2008 | CN101117812A Domestic water-saving device |
| 01/31/2008 | WO2008013369A1 Non-contact type water level control apparatus |
| 01/30/2008 | CN201014817Y Water level stepless regulation and display apparatus for solar water heater |
| 01/30/2008 | CN201014802Y Water segregator of solar water heater tank |
| 01/30/2008 | CN201014675Y Fan water deficiency protective equipment for humidifier |
| 01/30/2008 | CN201013027Y Automatic water-saving device |
| 01/30/2008 | CN101114176A Fluid level control measuring systems used for gas dynamic type pulse fluidic jet pump and method thereof |
| 01/30/2008 | CN100365532C Pumping type self-adjustment liquid level controller containing no movement components |
| 01/24/2008 | US20080017252 Electronic control device for a pump |
| 01/23/2008 | CN201011555Y Capacitor type water-level controlling apparatus |
| 01/23/2008 | CN201010933Y Automatic water level controller of differential pressure type water tank |
| 01/22/2008 | US7321810 Method of dynamic economic dispatch |
| 01/22/2008 | US7320225 Refrigeration system and method of operating the same |
| 01/17/2008 | WO2007111731A3 Flash tank refrigerant control |
| 01/16/2008 | CN201007799Y Automatic-manual water level controller |
| 01/16/2008 | CN201007571Y Solar energy water heater |
| 01/16/2008 | CN201007015Y Automatically water pumping system |
| 01/16/2008 | CN201005614Y Water-saving lavatory tools with automatic foaming for deodorizing, disinfecting and sterilizing |
| 01/16/2008 | CN201005613Y Water-saving lavatory tools using automatic foaming comminuting method to process |
| 01/16/2008 | CN101105041A Technique and device used for integral bathroom waste water recycle |
| 01/15/2008 | US7318344 Wireless swimming pool water level system |
| 01/15/2008 | CA2474868C Fail-safe fluid transfer controller |
| 01/09/2008 | CN201004186Y Water level automatic alarming adjustment device |
| 01/09/2008 | CN201004185Y A floating ball liquid level controller |
| 01/09/2008 | CN201003195Y Water-saving device for high building |