| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 10/01/2008 | CN201126540Y Automatic water-discharging apparatus |
| 10/01/2008 | CN201125423Y Water-saving double-water stream automatic control system |
| 10/01/2008 | CN201125418Y Reclaimed water using apparatus |
| 10/01/2008 | CN201125414Y Building intelligent full-automatic water storage device |
| 09/24/2008 | EP1971808A2 Flash tank refrigerant control |
| 09/24/2008 | CN201122245Y Multifunctional water-level controller |
| 09/24/2008 | CN201121885Y Boiler water-feeding control system |
| 09/24/2008 | CN201121597Y Automatic pumping control device |
| 09/24/2008 | CN201121349Y Unpowered automatic water supply equipment |
| 09/24/2008 | CN201121348Y Water container for integral toilet |
| 09/17/2008 | CN201116377Y Residence drainage system simulation experiment device |
| 09/12/2008 | WO2008108762A1 Turbocharger with adjustable throat |
| 09/10/2008 | EP1967932A1 Device for regulating the concentration of a component in a liquid |
| 09/10/2008 | CN101261049A Solar water heater water-storage bucket |
| 09/09/2008 | CA2275678C Method for monitoring foam and gas carry under and for controlling the addition of foam inhibiting chemicals |
| 09/04/2008 | DE202008008309U1 Überfüllsicherungsvorrichtung für Behälterbatterien Überfüllsicherungsvorrichtung container for batteries |
| 09/03/2008 | CN201110973Y 电子水位控制器 Electronic Water Level Controller |
| 09/03/2008 | CN201110972Y Ultrasonic wave remote sense liquid level display controller |
| 09/03/2008 | CN201110971Y Desulfuration regeneration slot liquid level regulator |
| 09/03/2008 | CN201110970Y Magnetic float type water level auto-controller |
| 09/03/2008 | CN201109918Y Full-automatic non negative pressure supply equipment |
| 09/02/2008 | US7421316 Method and device for regulating fluid pump pressures |
| 08/27/2008 | CN201107667Y Intelligent water level controller |
| 08/27/2008 | CN201107666Y Water pump power supply automatic control switch |
| 08/27/2008 | CN201107665Y 水泵无线自动控制系统 Pump wireless automatic control system |
| 08/27/2008 | CN201107664Y Water level regulating apparatus |
| 08/27/2008 | CN201107663Y Simple and reliable liquid level automatic control circuit |
| 08/27/2008 | CN201106224Y Self-lifting type sewage case |
| 08/27/2008 | CN201106200Y Autocycle water supply installation for sludge gas public lavatory |
| 08/27/2008 | CN100414468C Magnetron for water tank |
| 08/26/2008 | US7416706 Level sensor apparatus for detecting contact of a pipetting needle with a liquid in a vessel |
| 08/20/2008 | EP1957369A1 Systems and methods for detecting fluids |
| 08/20/2008 | EP1957201A1 Method and device for monitoring the operation of a flotation cell |
| 08/20/2008 | CN201103148Y Device for reusing waste water |
| 08/20/2008 | CN101245847A Overflow tube |
| 08/20/2008 | CN101245605A Non-negative pressure water service system |
| 08/20/2008 | CN100411923C Wiping free car washer |
| 08/14/2008 | WO2008095234A1 Flow sensor |
| 08/14/2008 | CA2712813A1 Flow sensor |
| 08/13/2008 | CN100410633C Water level transducer for washing machines |
| 08/06/2008 | CN201097218Y RF pilot sonar object position controller |
| 08/06/2008 | CN201097217Y Water box half-automatic water supply device for no electric non-floating ball solar heater |
| 08/06/2008 | CN201097216Y Fined vertical level adjusting device |
| 08/06/2008 | CN201097206Y Automatic control system for high voltage kettle |
| 08/06/2008 | CN101236437A Two polar radio frequency admittance material level indicator |
| 08/06/2008 | CN101235655A Domestic sewage reusing device |
| 08/05/2008 | US7409301 Boiler water level monitoring and control system |
| 08/05/2008 | US7409270 Control apparatus for deactivating an electrical load during congestion periods |
| 07/30/2008 | CN201092665Y Multi-functional water tank |
| 07/29/2008 | US7406365 Power manager with selective load reduction |
| 07/24/2008 | DE19538580B4 Verfahren zum Betreiben einer Geschirrspülmaschine A method for operating a dishwasher |
| 07/23/2008 | CN201090246Y Control apparatus for stope filling liquid position |
| 07/23/2008 | CN201089960Y Domestic water saving device |
| 07/22/2008 | CA2469635C Method and system for regulating the level of a dam |
| 07/17/2008 | US20080172417 Automatic Monitoring and Control of Fill Levels |
| 07/16/2008 | CN101220999A Water segregator of solar water heater tank |
| 07/16/2008 | CN101220606A Dual-control intelligent laminating water service system |
| 07/16/2008 | CN101219766A Automatic control measuring method and measuring device for oil unloading of fuel tank car |
| 07/16/2008 | CN101218884A Case type low pressure high volume pressure regulator |
| 07/16/2008 | CN101218883A Case type low pressure high volume pressure regulator |
| 07/10/2008 | US20080166271 Liquid concentration control supply apparatus |
| 07/10/2008 | US20080165613 Systems for self-balancing control of mixing and pumping |
| 07/09/2008 | CN201084021Y Full-automatic water level controller |
| 07/09/2008 | CN201084020Y Vacuum suction vehicle liquid level automatic controller |
| 07/09/2008 | CN201084019Y Container liquid level self-regulating control device |
| 07/09/2008 | CN201082970Y Automatic water-supply device |
| 07/09/2008 | CN101216700A Electric home appliance having drain function and method of controlling the same |
| 07/09/2008 | CN101215846A Full-automatic energy-saving water saving device |
| 07/02/2008 | CN101210838A Four-wire radio frequency admittance level gauge and material level meter and its method |
| 07/02/2008 | CN100398757C Solar energy-biological resource toilet |
| 07/01/2008 | US7392820 Liquid shut-off valve |
| 06/25/2008 | CN101205732A Automatic waste water reclamation system |
| 06/25/2008 | CN101205564A Molten iron loading amount control method of ironcored ladle car |
| 06/24/2008 | US7392112 Systems and methods for real-time fuel inventory control |
| 06/18/2008 | CN201074364Y Digitalized wireless programmed water supply system |
| 06/18/2008 | CN201074363Y Water-saving toilet seat |
| 06/18/2008 | CN101202938A System for realizing water level remote monitor supervision and early warning by GSM module |
| 06/11/2008 | CN201071527Y Toilet flushing system using household secondary water |
| 06/11/2008 | CN201071526Y Civil wastewater automatic processing and recycling device |
| 06/11/2008 | CN201071521Y Non-negative pressure water supply equipment for standby waterhead of self-drilled well |
| 06/11/2008 | CN101195411A Full-automatic constant pressure watercraft water supply system |
| 06/10/2008 | CA2383920C Apparatus and method for detecting the level of a mud bed |
| 06/04/2008 | CN201069279Y Automatic water feeding device for solar water heater |
| 06/04/2008 | CN201068870Y Water pump controller |
| 06/04/2008 | CN201067327Y Kitchen range water basin capable of automatically controlling water stage |
| 06/04/2008 | CN100392196C Domestic water saving system |
| 05/28/2008 | CN201066454Y Liquid level control system for flow rushing ground delve in mineral cotton plate production based on humid forming method |
| 05/28/2008 | CN201066453Y Intelligent liquid level controller |
| 05/28/2008 | CN201066452Y Continuous feeding level monitoring system for carbon material storage box |
| 05/28/2008 | CN201065555Y Water-saving device for tap water |
| 05/28/2008 | CN201065553Y Water economizer for civil use |
| 05/28/2008 | CN201065552Y Automatic water saver for toilet and bathroom |
| 05/28/2008 | CN101187220A Toilet seat for automatically utilizing waste water |
| 05/28/2008 | CN101187215A Full-automatic current limiting type negative pressure-free pipe network Pressure-superposed water supply equipment |
| 05/27/2008 | CA2331704C Liquid treatment device with storage tank and delivery tank |
| 05/21/2008 | DE202008001816U1 Kochgerät Cooking |
| 05/21/2008 | CN101182722A Water saving toilet system with middle water tank |
| 05/15/2008 | US20080113455 Planar etching of dissimilar materials |
| 05/14/2008 | CN201060797Y Automatic controller for electric motor |
| 05/14/2008 | CN201060417Y 浮球 Float |