| Patents for C02F 7 - Aeration of stretches of water (3,263) |
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| 04/20/2005 | CN2693759Y Self-cleaning microporous aerator |
| 04/20/2005 | CN2693758Y Traveling debubbling device for pool surface |
| 04/20/2005 | CN2693757Y Rotating debubbling device for pool surface |
| 04/13/2005 | CN2692135Y Aeration machine rotor device |
| 04/13/2005 | CN1196653C Water cleaner for enclosed water area |
| 04/06/2005 | CN2690387Y Improved aeration rotary disc and vertical flow aeration automatic aerator |
| 04/06/2005 | CN2690386Y Forced push flow type areobic reactor |
| 04/06/2005 | CN2690385Y Air inlet device of aerator |
| 04/06/2005 | CN2690384Y Air and water guide flow device for aerator |
| 04/06/2005 | CN2689686Y Pure water circulation automatic aerator |
| 04/02/2005 | CA2443267A1 Spinning disc aerator |
| 03/30/2005 | CN2688693Y Floating sewage purifying cabin |
| 03/30/2005 | CN2688691Y High-efficient cellular aerating head |
| 03/30/2005 | CN2688690Y Water-wheel high-efficient aerator |
| 03/30/2005 | CN1194913C Wind power aeration and air compression apparatus for sewage purifying treatment |
| 03/30/2005 | CN1194906C Method for cleaning water at water inlet of water works |
| 03/24/2005 | WO2004101447A8 A method of induced froth (foam) formation process and natural purification |
| 03/24/2005 | US20050061721 Water circulation systems for ponds, lakes, and other bodies of water |
| 03/23/2005 | CN2687114Y Connection sealing element for aerator |
| 03/23/2005 | CN1597573A Submersible pushing flow aeration machine |
| 03/16/2005 | CN1594124A Diving stirring type oxygen-rich magnetizing and oxygenating machine and oxygen-rich magnetizing and oxygenating method |
| 03/15/2005 | CA2481746A1 Method and apparatus for aerating a surface layer in a stratified liquid body |
| 02/16/2005 | CN2679145Y Disk-shape aerator |
| 02/10/2005 | WO2004060811A3 Process for treating a body of water |
| 02/02/2005 | CN2674853Y Connecting structure of wheel body and blade of water raising wheel of oxygen supply machine |
| 01/26/2005 | EP0959046B1 Apparatus for purification of water area |
| 01/26/2005 | CN2673857Y Artificial flowing type aeration bio-chemical equipment |
| 01/26/2005 | CN1569691A Jet Aerating Reactor |
| 01/19/2005 | CN2672054Y Improved diaphragm porous aerator |
| 01/19/2005 | CN2672053Y Waste water processing aerator of novel liquid resistant structure |
| 01/19/2005 | CN1565995A Wind powered aerating apparatus |
| 01/12/2005 | EP1494973A1 Method for treating bodies of water or the sediments thereof |
| 01/12/2005 | CN2669594Y Oxygen supplier |
| 01/12/2005 | CN2669592Y Impeller of oxygen supplier with multiple water sprays |
| 01/12/2005 | CN2669591Y Tracting apparatus of aerator |
| 01/12/2005 | CN1562804A Facility for guiding airflow and water flow in aerator |
| 01/06/2005 | WO2004101447B1 A method of induced froth (foam) formation process and natural purification |
| 01/05/2005 | CN2668624Y Sewage treatment apparatus |
| 01/05/2005 | CN2668623Y Hole-type rubber film aerator |
| 01/05/2005 | CN1183040C Method and pump for impelling water in waters |
| 01/04/2005 | CA2372331C System and method for removing pollutants from water |
| 12/29/2004 | CN2666898Y Aeration conduit skeleton |
| 12/29/2004 | CN1182044C Purifying apparatus for water area |
| 12/15/2004 | CN1554601A Multifunction water pumping aerator |
| 12/08/2004 | CN1552641A System and method for treating runway pollution by aquatic floating plant |
| 12/01/2004 | CN2659885Y Segamental suspension chain mobile aerator |
| 12/01/2004 | CN2659882Y High efficiency jet aerator |
| 12/01/2004 | CN2659133Y Mixed gas appts. of saturated dissolved oxygen |
| 11/30/2004 | US6824124 Aerator and mixer |
| 11/25/2004 | WO2004101447A1 A method of induced froth (foam) formation process and natural purification |
| 11/25/2004 | DE10217373B4 Verfahren zur Behandlung von Gewässersedimenten A method of treating water sediments |
| 11/25/2004 | CA2525630A1 A method of induced froth (foam) formation process and natural purification |
| 11/23/2004 | US6821426 Removing biodegradable materials; higher throughput while employing bioreactor containing biosuspended microorganisms and submerged eductor |
| 11/18/2004 | US20040226892 forming depression in surface; migration of product ; separation wells; extraction |
| 11/17/2004 | EP1476400A1 Microbubbles of oxygen |
| 11/17/2004 | CN2656669Y Water body aeration special pusher-type fan |
| 11/15/2004 | CA2428677A1 A method of induced froth (foam) formation process and natural purification |
| 11/10/2004 | CN2654599Y Micropore aerator having check function |
| 11/10/2004 | CN2654596Y Aeration rotary tray |
| 11/10/2004 | CN1174927C Energy-saving oxygenation system for sewage treatment |
| 11/09/2004 | US6814344 Method and apparatus for circulating fluids in a body of liquid |
| 11/03/2004 | CN2652924Y Power flow dispatching aerator |
| 10/28/2004 | WO2004071963A3 Treatment system and method for remediating a body of water |
| 10/14/2004 | DE202004008003U1 Apparatus for circulating water in lakes to improve aeration comprises pipe mounted under raft, water flowing up pipe and out through its top, which is below surface |
| 10/13/2004 | CN2648143Y Jet-flow-Roots aerator |
| 10/12/2004 | US6802978 Process for environmental recovery in urban regions |
| 10/07/2004 | WO2004061242A3 Water circulation systems for ponds, lakes, and other bodies of water |
| 10/06/2004 | CN2646142Y Sewage purification installation |
| 10/06/2004 | CN2646135Y Tubular aerator or filter |
| 10/06/2004 | CN2646119Y Lifting device for microporous aerator |
| 09/30/2004 | WO2004082816A1 Method for regenerating water with a low-oxygen atmosphere |
| 09/30/2004 | DE10312827A1 Verfahren zur Regenerierung von Wasser mit einer sauerstoffarmen Atmosphäre A process for the regeneration of water with a low oxygen atmosphere |
| 09/29/2004 | CN2644423Y Spontaneous imbibition type deepwater jet aeration machine |
| 09/29/2004 | CN2644422Y Spontaneous imbibition type deepwater jet aeration stirring dual-purpose machine |
| 09/29/2004 | CN1532153A Matevial for producing water aerating pipe and method for producing aerating pipe thereof |
| 09/22/2004 | CN2642772Y Wind power aeration machine |
| 09/22/2004 | CN1167635C Automatic hydraulic inflating stirrer and method of utilizing it in purifying water |
| 09/07/2004 | US6787045 Air stripping volatile compounds from water or other solutes by distributing gas through branched pipes; ponds, rivers, lakes, sewage or effluent treatment lagoons or beds; flow control irrespective of pressure drop |
| 09/01/2004 | CN2637769Y Water body aeration special pusher-type fan |
| 08/26/2004 | WO2004071963A2 Treatment system and method for remediating a body of water |
| 08/25/2004 | CN1163423C Mixing and oxygen-enriching equipment for treating sewage |
| 08/19/2004 | DE202004004084U1 Small-scale waste water aeration assembly has vertical sidewall with stainless steel pipe and vertical rail guide for variable-depth pump |
| 08/18/2004 | CN2633879Y Water gas atomizing oxygen enriching device |
| 08/18/2004 | CN1162332C Purifying method and purification system for lakes and marshes |
| 08/12/2004 | US20040154990 Treatment system and method for remediating a body of water |
| 08/11/2004 | CN2632079Y Aeration apparatus in water body |
| 08/11/2004 | CN2632076Y Jetting aeration distributor |
| 08/11/2004 | CN2632074Y Waste water biological method treater |
| 08/05/2004 | WO2004065312A1 Method and device for increasing oxygen content of hypolimnion and for removing harmful gases in hypolimnion |
| 07/28/2004 | CN1515510A Rotary disk aerator device mounted on horizontal shaft |
| 07/22/2004 | WO2004061242A2 Water circulation systems for ponds, lakes, and other bodies of water |
| 07/22/2004 | WO2004060811A2 Process for treating a body of water |
| 07/22/2004 | DE202004008324U1 Aeration apparatus for raising oxygen availability in bodies of water entrains air by pumping water through a housing having an inclined grating |
| 07/22/2004 | CA2723331A1 Water circulation systems for ponds, lakes, and other bodies of water |
| 07/21/2004 | CN2626991Y Rotary cutting aerator |
| 07/15/2004 | DE10259915A1 Filterelement für eine Klärvorrichtung zur biologischen Reinigung von Wasser Filter element for a clarifier for biological treatment of water |
| 07/08/2004 | US20040130044 Floating paddlewheel aerator |
| 06/30/2004 | CN2622169Y Tubular and variable microporous rubber film type aerator |
| 06/30/2004 | CN2622168Y Disc-shaped, multiple-arc base and variable micro-porous rubber film aerator |
| 06/24/2004 | US20040118701 Flow-through oxygenator |