| Patents for C02F 7 - Aeration of stretches of water (3,263) |
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| 12/23/2009 | CN101610985A System for improving total water qualities in eutrophicated and contaminated water area utilizing water purifying functions of various plants and microorganisms |
| 12/23/2009 | CN101606505A Method for ecologically purifying water quality of aquiculture pool by micropore aeration of biomembrane band |
| 12/23/2009 | CN100572304C Pressing in punching-expanding type pool oxygenation technique |
| 12/16/2009 | CN201362617Y Vertical artesian aerator |
| 12/16/2009 | CN201362613Y Energy-saving sewage oxygen exposure device |
| 12/16/2009 | CN101602550A Submerged type bubble-free high-efficiency oxygenated water body restoration system |
| 12/16/2009 | CN101602543A Aerating device and water treatment equipment utilizing same |
| 12/09/2009 | CN201355994Y Oxygenation pipe |
| 12/03/2009 | DE202009011320U1 Belüftungsspirale für Gewässer Ventilation spiral of Freshwater |
| 12/01/2009 | CA2539839C Improved aerator and mixer |
| 12/01/2009 | CA2471387C Diffuser and an aeration apparatus equipped with such a diffuser |
| 11/25/2009 | CN201349446Y Pool activity aerator |
| 11/25/2009 | CN201349445Y Fishpond aerator |
| 11/18/2009 | CN101580313A Water-stirring type submerging and surfacing dual-purpose automatic aerator |
| 11/18/2009 | CN101580312A Vertical axis type wind aeration machine |
| 11/18/2009 | CN100560516C Energy-conservation combined building aeration sedimentation tank |
| 11/11/2009 | CN201343454Y Water body restoration device utilizing solar energy |
| 11/11/2009 | CN101574070A Spaced nanometer oxygen increasing tube for crab and shrimp pool |
| 11/11/2009 | CN100558658C Method for treating sulfur-containing waste water |
| 11/11/2009 | CN100558654C Energy source self-help river water contamination treating apparatus |
| 11/11/2009 | CN100558652C Photocatalysis aeration filter pool for water treatment |
| 11/10/2009 | US7615147 Method and apparatus for water treatment |
| 11/05/2009 | US20090272689 Liquid aeration apparatus and wastewater treatment method |
| 10/29/2009 | DE202009008167U1 Eisfreihaltung bei schwimmenden Teichbelüftern Ice prevention for floating Teichbelüftern |
| 10/28/2009 | CN201334402Y High-dissolved oxygen generator |
| 10/28/2009 | CN201334391Y Combined jet flow impeller underwater aeration machine |
| 10/28/2009 | CN201332629Y Improved swinging aeration device |
| 10/28/2009 | CN100554188C Stack building blade wheel of waterwheel type automatic aerator |
| 10/21/2009 | CN201330190Y Sequential transducer |
| 10/21/2009 | CN100551851C Highly effective low-toxin release algae-removing method for city tap-water |
| 10/15/2009 | DE102009011086A1 Verfahren zur mikrobiologischen Behandlung von Wasser aus fließenden und/oder stehenden Gewässern Methods for the microbiological treatment of water from flowing and / or standing water |
| 10/14/2009 | CN101558014A A method and an apparatus for treatment of a substance having organic content |
| 10/14/2009 | CN100548901C Aeration air-flow control device for sewage treatment plant |
| 10/08/2009 | WO2009103087A3 Liquid waste aeration system and method |
| 10/08/2009 | DE202009008175U1 Flexible Verankerung schwimmender Teichbelüfter Flexible anchoring floating pond aerators |
| 10/08/2009 | DE202009008166U1 Nutzung der Umgebungsreflexion bei solarbetriebenen schwimmenden Teichbelüftern Use of the surrounding reflection on solar-powered floating Teichbelüftern |
| 10/07/2009 | CN201321406Y Aerator with non-return valve for sewage treatment |
| 10/07/2009 | CN201319809Y Lower-voltage direct-current input oxygen-increasing machine |
| 10/07/2009 | CN101548657A Improved swing oxygen-increasing device |
| 10/07/2009 | CN100546703C V cone type coupling seat of absorbing shock utilized in agitating plug flow equipment |
| 09/30/2009 | CN101544427A Device and method for automatic wind-power sewage aeration |
| 09/23/2009 | CN100542982C Activation type oxygen dissolved aerator |
| 09/22/2009 | CA2447738C Floating fine-bubble aeration system |
| 09/17/2009 | US20090230041 Integrated water treatment apparatus and methods for natural water improvement |
| 09/09/2009 | CN201305514Y Floating plug-flow type adjustable oxygen increasing machine |
| 09/09/2009 | CN201305513Y Floating type multi-layer deep-water oxygen increasing machine |
| 09/09/2009 | CN101525180A Method for controlling sewage comprehensively for urban front damming engineering system |
| 09/09/2009 | CN101524053A Economical type even oxygen aeration device of artificial fish breeding pond |
| 09/03/2009 | DE202009008168U1 Belüftungsturbine für schwimmende Teichbelüfter Ventilation turbine for floating pond aerators |
| 09/02/2009 | CN201301257Y Multi-nozzle circular seam ejection type sewage aerator |
| 09/02/2009 | CN101519264A Urban waste water ecological treatment and comprehensive utilization method |
| 09/01/2009 | CA2299134C Wastewater separator and method of using same |
| 08/26/2009 | CN201294809Y Vane type floating body of oxygen-increasing machine |
| 08/20/2009 | WO2009103087A2 Liquid waste aeration system and method |
| 08/19/2009 | CN201292292Y Self-inflating wind power oxygen increasing machine |
| 08/19/2009 | CN101508493A Float type solar energy driven flow building aeration device |
| 08/19/2009 | CN100528773C Aeration device and aeration equipment |
| 08/12/2009 | CN201288088Y Composite stirring type aeration oxygenation machine |
| 08/12/2009 | CN201288068Y Floating type multifunctional working table |
| 08/12/2009 | CN101503238A Method for repairing lake and anaerobic bottom mud by nano bubble |
| 08/12/2009 | CN100526237C Method of processing hydrazine hydrate waste water by ketone linking nitrogen method |
| 08/12/2009 | CN100526230C Diaphragm type oxygenate apparatus |
| 08/11/2009 | US7571899 Gas-liquid dissolving apparatus |
| 07/29/2009 | CN201280480Y Three-way water ejector |
| 07/22/2009 | EP1610887B1 Method for regenerating water having a low-oxygen atmosphere |
| 07/16/2009 | WO2009089114A1 Aspirator |
| 07/15/2009 | CN201272720Y Vortex shaped aeration apparatus of semi-range type micro-pore pipe |
| 07/15/2009 | CN201272719Y Oriented aeration apparatus of semi-range type micro-pore pipe |
| 07/15/2009 | CN201272718Y Semi-range type micro-pore pipe |
| 07/15/2009 | CN101481179A Fish pond sprinkling oxygenation apparatus |
| 07/08/2009 | EP1844847B1 Microbubble generator and microbubble generating method |
| 07/08/2009 | CN201268635Y Solar energy water activating device |
| 07/08/2009 | CN201268634Y V shaped strip microporous tube length misposition aeration apparatus arranged at two ends of fan or oxygenating pump |
| 07/08/2009 | CN201268633Y V shaped strip microporous tube length misposition aeration apparatus |
| 07/08/2009 | CN201268632Y Unequal diameter gas transmission main pipe v-shaped strip type microporous tube length malposition aeration apparatus |
| 07/08/2009 | CN201268631Y V shaped strip microporous tube length misposition aeration apparatus arranged in fan or oxygenating pump |
| 07/08/2009 | CN201268630Y Unequal diameter gas transmission main pipe type microporous tube aeration apparatus |
| 07/08/2009 | CN201268629Y Unequal diameter gas transmission main pipe v-shaped strip type microporous tube aeration apparatus |
| 07/08/2009 | CN201268628Y V shaped strip microporous tube aeration apparatus |
| 07/08/2009 | CN201268627Y V-shaped strip type microporous tube aeration apparatus arranged in fan or oxygenating pump |
| 07/02/2009 | US20090166300 System and method for dissolving gases in fluids and for delivery of dissolved gases |
| 07/01/2009 | EP2074068A1 A method and an apparatus for treatment of a substance having organic content |
| 06/17/2009 | CN101456633A Motor peering type cycloid star wheel diving flow impeller |
| 06/17/2009 | CN101456632A Motor peering type cycloid star wheel diving flow impeller |
| 06/17/2009 | CN101456631A Motor peering type cycloid star wheel diving flow impeller |
| 06/10/2009 | EP1377362B1 Floating paddlewheel aerator |
| 06/10/2009 | CN201254498Y Mobile sewage treatment device |
| 06/10/2009 | CN201254497Y Oxygenation material feeding machine for biology culture and treating water contamination |
| 06/10/2009 | CN201254496Y Wave making machine for biology culture and treating water contamination |
| 06/10/2009 | CN201254495Y Floating hydrologic cycle processing device |
| 06/10/2009 | CN201254494Y Activate type dissolved oxygen aerator |
| 05/27/2009 | CN201245517Y Double-floater soft connected underwater aeration machine installation apparatus |
| 05/27/2009 | CN201245516Y 360 DEG adjustable and elevatable underwater aeration machine installation apparatus |
| 05/27/2009 | CN201245515Y M tower type microporous tube aeration apparatus |
| 05/27/2009 | CN201245514Y Adjustable partial pressure joint V-shaped strip type microporous tube length malposition aeration apparatus |
| 05/27/2009 | CN201245513Y Unequal diameter gas transmission main pipe type microporous tube length malposition aeration apparatus |
| 05/27/2009 | CN201245501Y Rotary aeration disc with water level indicator |
| 05/27/2009 | CN201245500Y Phi 1500 socket wedge shaped plug flow rotary aeration disc |
| 05/27/2009 | CN201245448Y Light source equipped rotary impeller machine for improving water quality |
| 05/20/2009 | CN201240948Y Seal environment protection gas explosion machine unit |