| Patents for B01D 24 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (8,047) |
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| 09/15/2004 | CN2640570Y 全自动过滤器 Automatic filter |
| 09/15/2004 | CN2640569Y Fiber filter |
| 09/15/2004 | CN1528489A Deep sand filter |
| 09/14/2004 | US6790357 Media bed support grid |
| 09/14/2004 | US6790351 Vertical filter |
| 09/14/2004 | US6790345 Underwater filtration operator |
| 09/10/2004 | CA2649600A1 Water filter materials, corresponding water filters and processes for using the same |
| 09/09/2004 | US20040173510 Back washing valve and filtering apparatus with the same |
| 09/08/2004 | CN2638821Y Backwash filter chamber with air intake and water intake pass |
| 09/08/2004 | CN2638820Y Filter element closure structure |
| 09/08/2004 | CN1526890A Drainage treating apparatus |
| 09/02/2004 | US20040168968 Method for preparing an ion exchange media |
| 09/01/2004 | CN2636942Y Inverse filtration air water back purge plate turnover filtering pool |
| 09/01/2004 | CN2636941Y Eeath temperature (water source) air conditioning well water dirt removing device |
| 08/25/2004 | EP1448250A1 Filter cartridge assemblies and methods of filtering fluids |
| 08/25/2004 | CN2635175Y Stainless steel sand washing trough |
| 08/25/2004 | CN1163425C Method and apparatus for treating sewage from catering business |
| 08/25/2004 | CN1163291C Method for producing filter bottom for water treatment |
| 08/24/2004 | US6780312 Filtration apparatus |
| 08/19/2004 | US20040162203 Pleating methods |
| 08/19/2004 | US20040159601 Recirculating filter |
| 08/19/2004 | DE10305019A1 Fluidized bed vessel and backwashable filter for potable water, includes inlet producing rotating, upwardly-directed flow in buffering chamber |
| 08/18/2004 | CN1162340C Electrocoalescent system for decontaminating water streams |
| 08/12/2004 | WO2004067136A2 Apparatus and method for filtering fluids |
| 08/12/2004 | DE10060961A1 Packed bed filtration vessel for water treatment plant, used for e.g. swimming baths, includes lances for disinfectant fluid which also stirs up packed bed |
| 08/12/2004 | CA2514929A1 Apparatus and method for filtering fluids |
| 08/11/2004 | CN2631604Y Anti-block filter head |
| 08/11/2004 | CN2631603Y Adsorption filter |
| 08/11/2004 | CN1161286C Purification system for disposal of polluted or waste water using water plants |
| 08/05/2004 | US20040149655 Methods and systems for purifying fluids and regenerating purification media |
| 08/05/2004 | US20040149647 Filter element flow diverter barrier and method |
| 08/05/2004 | US20040149641 Modular filter system and method of repairing and/or replacing components thereof |
| 08/05/2004 | US20040149233 Aquaculture system |
| 08/04/2004 | EP1441829A1 Device and method for the purification of effluent |
| 08/04/2004 | EP1230166B1 Filtration device for liquids |
| 08/04/2004 | CN2630230Y Extracorporeal circulating walnut-shell cleaning filter |
| 08/04/2004 | CN1517141A Filter device and filter method using the filter device |
| 08/03/2004 | US6770204 Filter media with enhanced microbiological interception capability |
| 07/31/2004 | CA2417945A1 Methods and system for purifying fluids and regenerating purification media |
| 07/29/2004 | US20040144728 Continuously regenerating a reactive filter media while simultaneously filtering contaminants from fluid flowing through the filter media |
| 07/29/2004 | DE10303142A1 Fluidized bed vessel and backwashable filter for potable water, includes inlet producing rotating, upwardly-directed flow in buffering chamber |
| 07/28/2004 | CN2628123Y Active carbon filter |
| 07/28/2004 | CN2628122Y Improved fine particles filter material filtering device |
| 07/28/2004 | CN1515345A Back-filtered gas water reverse flushing filter pool |
| 07/28/2004 | CN1515344A Air distribution and water distribution member for filter pond and air distribution and water distribution equipment made of it |
| 07/28/2004 | CN1515343A Sewage treatment equipment by using coal as filtering material |
| 07/28/2004 | CN1515342A Heterogravity composition filtering material |
| 07/28/2004 | CN1515341A Bag composite fibre filter |
| 07/28/2004 | CN1159141C Filtering board mold and its usage in making filtering board |
| 07/27/2004 | US6767457 Recirculating filter |
| 07/22/2004 | WO2004060520A2 Three component filtration material |
| 07/22/2004 | US20040140256 High rate filtration system |
| 07/22/2004 | US20040140250 SSF/x slow sand filter |
| 07/22/2004 | CA2537762A1 Three component filtration material |
| 07/21/2004 | CN2626578Y Disposable pouring filter head filter plate |
| 07/21/2004 | CN2626577Y 不锈钢v型槽 Stainless steel v-groove |
| 07/21/2004 | CN2626576Y Starch purifying device |
| 07/21/2004 | CN2626575Y Rotary type continuous filtering device |
| 07/21/2004 | CN1158129C Two-way filtering cylinder filtering velocity ratio controlling method |
| 07/20/2004 | CA2274778C High rate filtration system |
| 07/15/2004 | WO2004035663A3 Method for preparing an ion exchange media |
| 07/15/2004 | WO2004024289A3 Method and apparatus for treating water |
| 07/15/2004 | US20040137209 Porous sintered composite materials |
| 07/14/2004 | EP1436060A1 Distribution and collection headers for a filter bed |
| 07/14/2004 | CN2625011Y Adjusting plate fabric filter |
| 07/08/2004 | US20040129639 Extraction methodology for suspended and dissolved material from fruit and vegetable wastewater |
| 07/07/2004 | EP1229980B1 Method and apparatus for treating of water/wastewater |
| 07/01/2004 | WO2004054701A1 Fluidized bed container and filter |
| 07/01/2004 | WO2004054625A2 Porous sintered composite materials |
| 07/01/2004 | US20040123574 Multilayer filters; blend of polypropylene fibers with polyphenylene isophthalamide |
| 06/30/2004 | CN2621789Y One-stage high officiency fibrous cloth filter |
| 06/29/2004 | US6755981 Aquarium cleaning system |
| 06/24/2004 | WO2004043864A3 Extraction methodology for suspended and dissolved material from fruit and vegetable wastewater |
| 06/24/2004 | US20040118763 Swimming pool filter |
| 06/24/2004 | DE10258414A1 Fluidized bed vessel and backwashable filter for potable water, includes inlet producing rotating, upwardly-directed flow in buffering chamber |
| 06/23/2004 | CN1507366A Continuous filtration device with pivoting cells |
| 06/23/2004 | CN1506145A High-speed filtering machine using fiber filtering material |
| 06/17/2004 | WO2004050561A1 Reactive filtration |
| 06/17/2004 | WO2004050210A1 Apparatus for inhibiting fines carryover |
| 06/17/2004 | US20040112807 Filter cartridge with check valve protection |
| 06/09/2004 | EP1426087A1 Sand bed device for filtering of liquids and particularly of water |
| 06/03/2004 | WO2004045742A1 Water filter and a method of water purification, backwashing and rinsing |
| 06/03/2004 | US20040105781 Method for flushing particle-bearing filter beds, to sterilize and decontaminate the same |
| 06/03/2004 | US20040104167 Method and apparatus for enhancing filter bed performance |
| 05/27/2004 | WO2004043864A2 Extraction methodology for suspended and dissolved material from fruit and vegetable wastewater |
| 05/27/2004 | WO2003103800A3 Filter cartridge and process for the production thereof |
| 05/27/2004 | US20040099589 System and method for treating wastewater using coir filter |
| 05/27/2004 | US20040099588 System for treating wastewater |
| 05/27/2004 | DE10231096B4 Filtervorrichtung und Innenbehälter für eine Filtervorrichtung Filter device and the inner container for a filter device |
| 05/26/2004 | EP1420869A2 Filter device for garden ponds or similar |
| 05/26/2004 | CN1498667A Horizontal high speed filtering unit using fiberous filtering material |
| 05/26/2004 | CN1150960C 纤维过滤器 Fiber filters |
| 05/26/2004 | CN1150959C Antimicrobial filter cartridge |
| 05/25/2004 | US6740237 Low profile extruded underdrain |
| 05/19/2004 | EP1419113A1 Filter assemblies with compressible filtering medium |
| 05/19/2004 | DE20122128U1 Filtering device used to rapidly filter large amounts of water, e.g. in swimming pools comprises a filter casing surrounding a filter bed in the lower and/or middle region and a freeboard in the upper region |
| 05/19/2004 | CN2616271Y Tap-water filter |
| 05/19/2004 | CN2616270Y Filtering core for water purifier |
| 05/19/2004 | CN1497011A Method of deaggre gating solution and removing micro particle from polyethylene glycol terephthalate and regeneration method of wed filtering material |
| 05/13/2004 | WO2004013053B1 Method and apparatus for enhancing filter bed performance |