| 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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| 02/01/2005 | US6849180 Flow splitting weir |
| 01/26/2005 | EP1500422A1 Filter body for cleaning contaminated surface water in the form of a ground profile acting as a filter |
| 01/26/2005 | CN2673479Y Water collection unit of mechanical filter |
| 01/26/2005 | CN1186462C Method for using air or water to reversely flush grain slag filter of blast furnace |
| 01/25/2005 | CA2299121C Filtering device |
| 01/25/2005 | CA2158644C Filter media treatment of a fluid flow to remove colloidal matter |
| 01/20/2005 | US20050011825 Filter device for garden ponds or similar |
| 01/19/2005 | CN2671656Y High flow speed fibre bundle filter |
| 01/19/2005 | CN1565698A Upflowing and compressable filtration system |
| 01/13/2005 | US20050006287 Apparatus for sampling filter layer and method using the same |
| 01/12/2005 | EP1494942A1 Chip discharge system |
| 01/12/2005 | EP1494777A1 Filter module and process for the production of a filled filter module |
| 01/12/2005 | EP1409109A4 Back washing valve and filtering apparatus with the same |
| 01/12/2005 | CN1562438A New type filtering device |
| 01/11/2005 | US6841069 High rate filter and high rate filtration method using the filter |
| 01/11/2005 | US6841067 Filtration device for liquids |
| 01/11/2005 | CA2123361C Filtering devices for the clarification of liquids, particularly water |
| 01/06/2005 | WO2005000745A2 Fluid treatment and media management device |
| 01/05/2005 | CN2668607Y Multi-medium-layer oil-water separator |
| 01/05/2005 | CN2668221Y Three-layer filtering-material filter |
| 01/05/2005 | CN2668220Y Double-chamber dual-flow quartz sand filter |
| 01/05/2005 | CN2668219Y Water purifying filter without secondary pollution |
| 12/30/2004 | US20040262211 Filter device |
| 12/29/2004 | EP1490153A1 Method and installation for filtering liquid media generating in the treated liquid an overall spiralling movement |
| 12/29/2004 | CN1557524A Fiber clock deep filter for reclaiming sewage |
| 12/23/2004 | US20040256305 Filter facility having flow facilitating structure |
| 12/23/2004 | US20040256304 Recirculating filter |
| 12/23/2004 | DE202004011918U1 Liquid filter for liquid effluent, e.g. water, has loose rubber granules packed between fixed perforated disc and moving perforated disc |
| 12/22/2004 | CN2664747Y Alloy filtering material reactor |
| 12/16/2004 | WO2004108247A1 Liquid purification installation |
| 12/16/2004 | US20040251190 Microorganism-removing filter medium having high isoelectric material and low melt index binder |
| 12/15/2004 | CN1179776C Pressure sand filter and reverse flushing method |
| 12/14/2004 | US6830684 Integrated liquid and gas distribution device for underdrain block laterals |
| 12/14/2004 | CA2294773C Coagulator |
| 12/09/2004 | WO2004087282A3 Grease removal system |
| 12/09/2004 | WO2004078655A3 A system for treating wastewater |
| 12/09/2004 | US20040245168 Universal porous unit |
| 12/09/2004 | DE20122283U1 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 |
| 12/09/2004 | CA2526477A1 Filter bag |
| 12/08/2004 | CN2661279Y Novel highly effective faster fibers ball filter |
| 12/08/2004 | CN1552504A Moving bed stratum granulosum filter of thermal conterflow uniform flow field |
| 12/08/2004 | CN1178863C Tank treatment assembly |
| 12/07/2004 | US6827856 Using chelating resins for removing copper; displacing absorbed copper by treating resins with hydrochloric acid or sulfuric acid solutions; waste from iodine recovery by copper mineralization of X-ray contrast agent production solutions |
| 12/02/2004 | US20040238433 Filter assemblies with compressible filtering medium |
| 12/02/2004 | US20040238430 Sand filter with rotating vanes |
| 12/02/2004 | US20040238429 Filtration system |
| 11/25/2004 | DE10318708A1 Swimming pool water filter has filter tank with bulk grain horizontal filter layers on a water permeable base under top layer of active carbon granules |
| 11/25/2004 | DE10318456A1 Swimming pool water filter assembly has main filter tank with top-mounted inlet and bottom-mounted outlet with back-flush cleaning |
| 11/24/2004 | CN1549740A Filter device for garden ponds or similar |
| 11/24/2004 | CN1548210A Fiber tow for fiber filter |
| 11/23/2004 | US6821445 Water pollution control; high speed, floating filter vessel |
| 11/18/2004 | WO2004099083A2 A system and method for treating wastewater using coir filter |
| 11/18/2004 | US20040226897 Apparatus and method for filtering fluids |
| 11/18/2004 | US20040226890 Method for recovering ionic products |
| 11/18/2004 | CA2524705A1 A system and method for treating wastewater using coir filter |
| 11/10/2004 | CN1174791C Method for removing removed substance from fluid |
| 11/04/2004 | US20040217066 Controlling filter backwashing flow; easily alternating between external and process fluid source; efficiently removing suspended solids |
| 11/03/2004 | EP0533754B1 Method of biological treatment of liquid |
| 11/03/2004 | CN1541765A Filtration method of nanometer molecular screen |
| 10/27/2004 | CN1540112A Underground water converter for integrating water route |
| 10/26/2004 | US6808548 Three component filtration material |
| 10/21/2004 | WO2004089506A1 Geosynthetic composite |
| 10/21/2004 | WO2004089505A1 Filtration apparatus |
| 10/21/2004 | US20040206710 Helices flow generated for filtration, floating layers scraping and discharging |
| 10/20/2004 | CN2649161Y Beater |
| 10/20/2004 | CN2649160Y Multi-dimensional high-speed filter |
| 10/20/2004 | CN2649159Y Upward-flowing compressible filtering device |
| 10/19/2004 | CA2149868C A suction head arranged between a filtrate channel and a barometric leg of a rotating filter |
| 10/14/2004 | WO2004087282A2 Grease removal system |
| 10/14/2004 | US20040201115 Fluid distribution system and associated methods |
| 10/13/2004 | EP1268028B1 Method for flushing particle-bearing filter beds, to sterilise and decontaminate the same |
| 10/13/2004 | CN1535751A Built-in box type multi-media filter |
| 10/13/2004 | CN1535750A Modularized box type combined pressure filter and its filtration system |
| 10/12/2004 | US6802157 Tank cover system with substantial gas seal |
| 10/07/2004 | US20040195186 Grease removal system |
| 10/07/2004 | US20040195180 Microorganism-removing filter medium having high isoelectric material and low melt index binder |
| 10/07/2004 | US20040195162 Filtration device |
| 10/07/2004 | DE202004009347U1 Fine filtration assembly, for water, has an alternating compression/expansion action on the coarse and fine filters to clear them of separated particles and prevent clogging |
| 10/06/2004 | EP1383588B1 Continuous filtration device with pivoting cells |
| 10/06/2004 | CN1169597C Intelligent controlled water treatment system with double-valve filter pool |
| 10/05/2004 | US6800197 Continuously operable rotating drum pressure differential filter, method and systems |
| 10/05/2004 | CA2105661C A device and a method for separating liquid samples |
| 09/30/2004 | WO2004082799A1 Filter media with enhanced microbiological interception capability |
| 09/29/2004 | EP1462153A1 Filtration device |
| 09/29/2004 | CN2643972Y High-efficiency fibre filter |
| 09/29/2004 | CN2643971Y Short fibre highly effective filter of counter weight pattern |
| 09/29/2004 | CN1533297A Back washing valve and filtering apparatus with the same |
| 09/29/2004 | CN1531989A Active carbon powder coating fine purifying and magnetic filtering system |
| 09/29/2004 | CN1168676C Contaminated-fluid treatnig filter method and equipment |
| 09/29/2004 | CN1168520C Method for removing inpurity from fluid |
| 09/28/2004 | US6797166 Underdrain apparatus |
| 09/28/2004 | US6797158 Method and apparatus for acoustically driven media filtration |
| 09/28/2004 | CA2153309C Method and apparatus for displacing liquor from a slurry of particulate solid material |
| 09/23/2004 | WO2004067136A3 Apparatus and method for filtering fluids |
| 09/21/2004 | US6793813 Sealed filtration system |
| 09/16/2004 | WO2004078655A2 A system for treating wastewater |
| 09/16/2004 | US20040178132 Liquid-solid circulating fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal |
| 09/16/2004 | CA2526414A1 A system for treating wastewater |
| 09/15/2004 | EP1457244A1 Filter device |
| 09/15/2004 | CN2640571Y Continuous operating filter |