| 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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| 06/20/2000 | US6077446 Sand filtration filtering system using ozone |
| 06/20/2000 | US6077426 Filter filled with loose bulk material |
| 06/18/2000 | CA2256290A1 Sealing shoe for celless traveling bridge filter |
| 06/14/2000 | EP1007819A1 Prepacked flush joint well screen |
| 06/14/2000 | EP1007185A1 Microcolumn for extraction of analytes from liquids |
| 06/14/2000 | EP1007182A1 Method and plant for treating water incorporating a sedimentation tank and an multilayer filter operating at high speeds |
| 06/14/2000 | CN1053431C Process and device for treatment of waste water |
| 06/08/2000 | WO2000032523A1 Purification system for disposal of polluted or waste water using water plants |
| 06/08/2000 | WO1999048584A9 Filter constructions and methods |
| 06/07/2000 | CN1255399A 固液分离器 Solid-liquid separator |
| 06/07/2000 | CN1053121C Positive pressure filtration type domestic water purifier |
| 06/06/2000 | US6071413 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse omosis |
| 05/31/2000 | CN2380287Y Monitor for washing course of filter of water factory |
| 05/31/2000 | CN2380286Y Continuous sand filter |
| 05/24/2000 | CN1254325A Water purification apparatus having many functions |
| 05/24/2000 | CN1253916A Denitrogenation filter and its denitrogenation method |
| 05/17/2000 | EP1000651A1 Leukapheretic filter medium |
| 05/17/2000 | CN2378102Y Two-section sand washing trough base structure for continuous sand filter |
| 05/17/2000 | CN2378101Y Water filter |
| 05/11/2000 | WO2000025887A1 Water treatment device with liquid level control |
| 05/10/2000 | EP0998429A1 Coagulator |
| 05/10/2000 | CN1252777A Filter cartridge for gravity-fed water treatment device |
| 05/10/2000 | CN1252387A Stuffing and filtering material loosening and washing method |
| 05/09/2000 | US6059967 Distributor device for water conditioner backflush apparatus |
| 05/03/2000 | EP0996503A1 Water container with filter cartridge |
| 05/03/2000 | EP0996492A1 Filter nozzle |
| 05/03/2000 | CN1252117A Prepacked flush joint well screen |
| 04/25/2000 | CA2146609C Water filtration cartridge |
| 04/20/2000 | WO2000021635A1 Slow sand filter for use with intermittently flowing water supply and method of use thereof |
| 04/19/2000 | CN1250748A Regeneration of water treatment medium |
| 04/19/2000 | CN1250675A 纤维过滤器 Fiber filters |
| 04/18/2000 | US6051137 Sewage dewatering process and equipment |
| 04/12/2000 | EP0992459A2 Rotatable valve unit for water treatment device |
| 04/12/2000 | CN2373437Y High-efficient purification drinker |
| 04/12/2000 | CN2373152Y High-effcient ceramicite water treatment filter |
| 04/12/2000 | CN1249956A Filtering technology and equipment utilizing porous medium |
| 04/11/2000 | US6048456 Water filter housing |
| 04/11/2000 | US6048132 Filter underdrain with prefabricated cells |
| 04/05/2000 | CN2372036Y Multifunctional one-way shutoff water-filtering cap |
| 03/30/2000 | WO2000016874A1 Filters |
| 03/29/2000 | EP0988103A4 In-line gravity driven liquid filtration device useable to filter blood or blood products |
| 03/29/2000 | EP0988103A1 In-line gravity driven liquid filtration device useable to filter blood or blood products |
| 03/29/2000 | CN2370936Y Double-layer combined filter |
| 03/29/2000 | CN1249059A BWR emergency core cooling system strainer |
| 03/28/2000 | US6042729 Regeneration of water treatment media |
| 03/22/2000 | CN2369740Y Suspending extruding fiber filter |
| 03/22/2000 | CN1248174A Method for producing filter bottom for water treatment |
| 03/21/2000 | US6039866 Fluidized bed filtering apparatus |
| 03/15/2000 | EP0686057B1 Filter for liquids |
| 03/15/2000 | CN2368586Y Filter for gas user supplied through pipelines |
| 03/08/2000 | EP0983954A1 Pleating apparatus and methods |
| 03/08/2000 | CN2367369Y Back-flushing device for siphon filtering tank |
| 03/01/2000 | EP0982061A1 Filters, methods of making a filter, and filtering methods |
| 03/01/2000 | EP0982060A1 Precoat filters and methods |
| 03/01/2000 | CN2366160Y Micro-filtering type water purifying apparatus with small end |
| 02/29/2000 | US6030529 Biological reactor including settler assembly |
| 02/23/2000 | CN2364949Y 固液分离器 Solid-liquid separator |
| 02/22/2000 | US6027645 Granular media filter including media settler assembly |
| 02/22/2000 | CA2141680C Loading control system for a cyclical centrifugal machine |
| 02/16/2000 | CN2363770Y Float traction type fibre filter |
| 02/15/2000 | US6024870 Sewage filtration system |
| 02/15/2000 | US6024867 Counter top water filter with replaceable electronic display monitor |
| 02/09/2000 | CN2362840Y Multi-function water purifier |
| 02/09/2000 | CN2362569Y Filter |
| 02/09/2000 | CN2362565Y Assembling type three-phase separator |
| 02/02/2000 | EP0976437A2 Liquid treatment media regeneration apparatus and process |
| 02/02/2000 | EP0975552A1 Filter cartridge for gravity-fed water treatment devices |
| 02/02/2000 | CN2361359Y Automatic distributing efficient fiber filter |
| 02/02/2000 | CN1048963C Lime softening water treatment method and its filtering equipment |
| 01/26/2000 | EP0793750B1 Apparatus and process for screening a fibre suspension and process for producing paper utilizing the same |
| 01/19/2000 | EP0972552A1 Apparatus for fluid purification |
| 01/18/2000 | US6015502 Method for separating hydrocarbons from a fluid stream that includes an aqueous solution, solid particles and microscopic droplets of organic |
| 01/05/2000 | CN2356992Y 净水器 Water Purifier |
| 01/05/2000 | CN2356731Y Filter plate for filter chamber |
| 01/05/2000 | CN2356730Y Solid-liquid separator |
| 01/04/2000 | US6010633 Method of preventing air from becoming entrapped within a filtration device |
| 12/29/1999 | EP0673276B2 Removal of impurities |
| 12/29/1999 | CN2355767Y 清刷式过滤净水器 Brushing filter water purifier |
| 12/23/1999 | WO1999065832A1 Filter cartridge assembly |
| 12/22/1999 | EP0965136A1 Bwr emergency core cooling system strainer |
| 12/22/1999 | EP0946248A4 Filter with counter flow clearing |
| 12/22/1999 | CN2354932Y Multifunctional wastewater purifier |
| 12/22/1999 | CN2354629Y Filter for water treatment |
| 12/22/1999 | CN1239442A Filter with counter flow clearing |
| 12/22/1999 | CN1239008A Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes |
| 12/15/1999 | EP0749346B1 Faucet-mounted water treatment device |
| 12/15/1999 | EP0669848B2 A suction head arranged between a filtrate channel and a barometric leg of a rotating filter |
| 12/15/1999 | CN1238709A Cyclodextrin polymer separation materials |
| 12/14/1999 | US6001249 Multi-stage water filter system |
| 12/08/1999 | EP0962245A1 Process for filtering a fluid, plant for performing such a process, and reactor for such a plant |
| 12/08/1999 | EP0961648A1 Method for producing a filter bottom for water treatment |
| 12/08/1999 | CN2352236Y Water filtration apparatus |
| 12/07/1999 | CA2028627C Filter device |
| 12/01/1999 | CN1236841A dehydrating concentrator |
| 12/01/1999 | CN1236658A Draining purifier |
| 12/01/1999 | CN1046924C Component of material for purifying and mineralizing drinking water |
| 11/30/1999 | US5993672 Slow sand filter for use with intermittently flowing water supply and method of use thereof |
| 11/30/1999 | US5992642 Filtering apparatus and filtering system |
| 11/23/1999 | US5989424 Water filtration cartridge |
| 11/18/1999 | WO1999058456A1 Coagulator |