| 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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| 01/29/2003 | CN1099900C Cleaning method and device for fibre bundle of fiber filter |
| 01/23/2003 | WO2003006136A1 A method for filtering a fluid stream and filters for performing the method |
| 01/23/2003 | DE20215019U1 Water treatment appliance has honeycomb blocks of treatment material, forming channels in the flow direction, to give maximum water contact with a low flow resistance |
| 01/22/2003 | EP0998429B1 Coagulator |
| 01/22/2003 | CN2531855Y Sand and stone filter |
| 01/22/2003 | CN1391974A Self-cleaning drinking water purifier |
| 01/16/2003 | US20030010699 Filtration apparatus |
| 01/16/2003 | US20030010691 Underwater filtration operator |
| 01/15/2003 | CN1390617A Dischargers |
| 01/15/2003 | CN1390616A Fine filter with side flow filtration and lateral flow filtration varying porosity with simple structure |
| 01/09/2003 | US20030006183 Filter media retaining cap and hold down grid |
| 01/08/2003 | CN2529685Y Partition type filtering pot |
| 01/02/2003 | US20030000883 Modular filter system |
| 01/02/2003 | EP1268028A1 Method for flushing particle-bearing filter beds, to sterilise and decontaminate the same |
| 01/02/2003 | EP1268027A1 Solid buoyant media induced flotation |
| 01/01/2003 | CN1097474C Slurry filtering equipment and flue gas sweetening system |
| 12/31/2002 | US6500347 Oxidizing para-xylene with molecular oxygen in a solvent containing catalyst, acetic acid and water as solvents, and crystals of crude terephthalic acid are recovered by feeding a flash vapor, obtained by depressurizing oxidation liquid |
| 12/31/2002 | US6500344 Method and apparatus for filtering particles out of a liquid |
| 12/12/2002 | US20020185430 Variable pore micro filter having simple and compact structure capable of side stream filtration and cross flow filtration |
| 12/12/2002 | US20020185427 Media bed support grid |
| 12/11/2002 | EP1264626A1 Variable pore micro filter having simple and compact structure capable of side stream filtration and cross flow filtration |
| 12/11/2002 | EP0819100B1 Water filtration cartridge |
| 12/06/2002 | CA2389155A1 Filter media retaining cap and hold down grid |
| 12/03/2002 | US6488849 Rotating device for continuously filtering a liquid such as a solution containing a precipitate |
| 12/03/2002 | US6488842 Filtering device |
| 11/28/2002 | DE10116126A1 Water filter overhead manifold distributes fibre-laden water directly into organic plastic filter layer under pressure |
| 11/21/2002 | WO2002092191A1 Media bed support grid |
| 11/20/2002 | CN2520930Y Back flushing watery wine filter |
| 11/20/2002 | CN1380835A Method and apparatus for treating of water/waste water |
| 11/19/2002 | US6482320 Solid-liquid separator |
| 11/14/2002 | WO2002089953A1 Continuous filtration device with pivoting cells |
| 11/14/2002 | US20020166807 Underdrain filtration system with stamped perforations |
| 11/13/2002 | EP1229980A4 Method and apparatus for treating of water/wastewater |
| 11/12/2002 | US6478955 Membrane magnetic separating apparatus |
| 11/07/2002 | US20020162783 Pipe gallery for water filtration systems |
| 11/05/2002 | US6475382 Treatment unit for treating a fluid and method thereof |
| 10/31/2002 | WO2002085487A1 Device and method for filtering a liquid |
| 10/31/2002 | US20020157323 Tank cover system with substantial gas seal |
| 10/30/2002 | CN2518567Y Pneumatic valve for air water recoil filter |
| 10/30/2002 | CN2518566Y Pressure water purifier |
| 10/29/2002 | US6471857 Filter apparatus with sand filter bed |
| 10/17/2002 | WO2002081050A1 Rain water treating device in combined sewage, and backwashing method therefor |
| 10/16/2002 | CN1092611C Method and apparatus for drying sludges |
| 10/09/2002 | CN2514889Y Improved filter device for water tower |
| 10/09/2002 | CN1092075C Continuous iron powder filtering deoxidation method and device |
| 10/08/2002 | US6461525 Method for backwashing granular media filters and bioreactors |
| 10/08/2002 | US6461524 Method of filtering a fluid |
| 10/08/2002 | US6461501 Ornamental pond skimmer and filter apparatus |
| 10/03/2002 | WO2002076572A1 Apparatus for filtering suspended solid in water |
| 10/02/2002 | CN2513649Y Efficient fibre ball filter |
| 10/02/2002 | CN2513648Y Filter for improving water quality |
| 10/02/2002 | CN1372485A Filtration device, and method of cleaning filter material container in filtration device |
| 09/25/2002 | EP1243559A2 Magnetic membrane separator |
| 09/25/2002 | EP1243298A1 Filling out-flow preventing filter and absorber attached with it |
| 09/25/2002 | EP1242638A1 A process for the recovery of copper from aqueous solutions containing iodinated organic compounds |
| 09/25/2002 | CN2512484Y Water and gas distribution device for filter pool |
| 09/25/2002 | CN2512483Y Filter for treatment of waste water |
| 09/19/2002 | WO2002072227A1 High rate filter and high rate filtration method using the filter |
| 09/18/2002 | CN1091077C Denitrogenation filer and its denitrogenation material working method |
| 09/18/2002 | CN1091028C Composite particulate material and process for preparing same |
| 09/12/2002 | WO2002034677A3 Water treatment device |
| 09/11/2002 | CN2510142Y Fixed-casing filter |
| 09/11/2002 | CN1368395A Dirt remover |
| 09/10/2002 | US6447678 Automatic cleaning of through turbulence and abrasion; rotatable valve plate allowing service, backwash, flush, off and/or bypass operational modes |
| 09/06/2002 | WO2002068345A1 Oxygen-enriched water purifying plant |
| 09/06/2002 | WO2002068085A1 Filtering system for runoff water |
| 08/29/2002 | US20020117437 Recirculating filter |
| 08/29/2002 | US20020117435 Filtering system for runoff water |
| 08/22/2002 | US20020113001 Apparatus and method for rehabilitating a traveling bridge filter underdrain |
| 08/21/2002 | CN2506332Y Continuous inner circulation sand filter |
| 08/21/2002 | CN2506331Y Adjustable filter head for filter pool |
| 08/21/2002 | CN2506330Y Concrete filter board for filter pool |
| 08/14/2002 | EP1230166A2 Filtration device for liquids |
| 08/14/2002 | EP1229980A2 Method and apparatus for treating of water/wastewater |
| 08/14/2002 | EP0759891B1 Method and apparatus for water treatment |
| 08/14/2002 | DE10106322A1 Wasserfilter Water Filters |
| 08/13/2002 | CA2252532C Fluid treatment media support system |
| 08/07/2002 | EP1227868A2 Recyclable filter cartridge and pressure vessel |
| 08/07/2002 | CN2503962Y Alloyed filtering material reactor |
| 08/07/2002 | CN1362566A Filtering board mold and its usage in making filtering board |
| 08/07/2002 | CN1088633C Method and device for clearing bottoms of pools with sand beds |
| 08/06/2002 | US6428709 Supplying fluid including removables to first filter, depositing removables on filter surface to form second filter, filtering removables by supplying fluid to filter, applying external force to constituents of second filter to refresh it |
| 08/06/2002 | US6428690 Filter module with improved backwash capability |
| 07/30/2002 | US6426005 Sequential descending bed filters with reject/washwater containing impurities being fed to a separate unit for elimination of impurities |
| 07/30/2002 | CA2070933C Granular media regeneration apparatus and process |
| 07/25/2002 | WO2002056994A1 Device for purifying wastewater and method thereof |
| 07/25/2002 | US20020096466 Recirculating filter |
| 07/25/2002 | US20020096463 Apparatus for directing fluids through a filter system |
| 07/23/2002 | US6423216 Biological oxidation filter system |
| 07/17/2002 | EP1223252A2 Screening device |
| 07/17/2002 | CN2500368Y 水质过滤器 Water Filters |
| 07/17/2002 | CN1358554A Intelligent controlled water treatment system with double-valve filter pool |
| 07/17/2002 | CN1358553A All position stripping type filter |
| 07/16/2002 | US6419823 Apparatus and method for sanitizing and cleaning a filter system |
| 07/10/2002 | CN2499101Y New filter element and filter equipment using it |
| 07/09/2002 | US6416661 Universal well screen filter |
| 07/03/2002 | CN1356184A Transfer apparatus and method for recovering solid substance |
| 07/02/2002 | US6413423 Liquid treatment apparatus with backwash flow control valve |
| 07/02/2002 | CA2090339C Method of washing an upflow filter and filter bed employed in said filter |
| 06/27/2002 | US20020079267 Process for direct filtration of wastewater |