| 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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| 08/15/2001 | CN1308024A Contaminated-fluid treating filter method and equipment |
| 08/08/2001 | CN2441537Y 净水器 Water Purifier |
| 08/07/2001 | US6270662 Drain basin filter insert system |
| 08/02/2001 | US20010010300 Plurality of panels filled with granular filtering material separated by elements cast in the ground, member emdedded in the element and auxiliary devices |
| 08/02/2001 | DE10002397A1 Settling filter assembly has a number of vertical filter elements to filter the forced water through them into a suction and/or pressure frame and settling chambers are under the filters with outlet openings for cleaning |
| 07/31/2001 | US6267898 For removing leukocytes from a leukocyte-containing fluid. |
| 07/31/2001 | US6267882 System for filtration of septic tank sewage effluent |
| 07/26/2001 | US20010009237 Automatic cleaning of through turbulence and abrasion; rotatable valve plate allowing service, backwash, flush, off and/or bypass operational modes |
| 07/19/2001 | US20010008218 Multimedia backwashable filtration system |
| 07/18/2001 | CN2439312Y Filtration apparatus |
| 07/17/2001 | US6261453 Fluid treatment media support system |
| 07/17/2001 | US6261417 Dehydrating concentrator |
| 07/11/2001 | EP1114669A1 Process and apparatus for the removal of dust in a reaction zone |
| 07/11/2001 | EP0949948B1 Method and device for continuous filtration of liquids |
| 07/10/2001 | US6258267 Rotary drum filtration apparatus with a detachable filter |
| 07/04/2001 | CN2437389Y Water filtering apparatus |
| 07/04/2001 | CN1302220A Method and device for filtering particles from liquid |
| 07/03/2001 | US6255102 An apparatus for the removal of noxious odors and components from gases given off by sewage treatment facilities; inexpensive, rapidly erected modular support system for biofiltration or composting |
| 07/03/2001 | US6254772 Backwashable filtration system |
| 06/28/2001 | US20010004980 Method for the partial fusion of objects |
| 06/28/2001 | US20010004974 Cleaning the sand beds of slow sand filters, infiltration basins, while the filter is in service by traversing surface of the sand with a tracked cleaning maching in predetermined pattern |
| 06/27/2001 | EP0996492B1 Filter nozzle |
| 06/27/2001 | CN2436001Y Portable water-purifying bottle |
| 06/27/2001 | CN1301189A Antimicrobial filter cartridge |
| 06/26/2001 | US6251269 Modular filtration system having removable filter element |
| 06/21/2001 | WO2001044521A1 A process for the recovery of copper from aqueous solutions containing iodinated organic compounds |
| 06/20/2001 | EP0951327B1 Device for continuous filtration of liquids |
| 06/20/2001 | CN2435141Y Edible oil purifying filter body |
| 06/20/2001 | CN1067291C 过滤器 Filter |
| 06/20/2001 | CN1067289C Method of separating solids from liquids and/or separating emulsions |
| 06/13/2001 | EP1106228A1 Device for measuring water flow throughput |
| 06/13/2001 | EP1106226A1 Water filter with separating element for the filter material |
| 06/13/2001 | EP1106225A1 Pressure filter for water |
| 06/13/2001 | EP0939667A4 Cyclodextrin polymer separation materials |
| 06/13/2001 | CN2434048Y Uninterrupted cleaning filter |
| 06/13/2001 | CN2434047Y Fiber filter |
| 06/13/2001 | CN1066975C Bybass filtering |
| 06/12/2001 | US6245233 Water filtering apparatus with water flow switch valve device |
| 06/07/2001 | DE19958649A1 Druckwasserfilter Pressurized water filter |
| 06/07/2001 | DE19958647A1 Wasserfilter mit Filtermaterialtrennelement Water filter with filter material separating element |
| 06/07/2001 | DE19958640A1 Vorrichtung zur Messung von Wasserdurchflußmengen Device for measuring Wasserdurchflußmengen |
| 06/05/2001 | US6241877 Water gardening system |
| 06/05/2001 | US6241103 Filter cartridge for water treatment device |
| 06/05/2001 | CA2073969C System and method for treating sewage or other fluids |
| 05/30/2001 | CN1296857A Groundwater filter for producing drinking water |
| 05/29/2001 | US6238556 Filtration system including a back washable pre-filtration apparatus |
| 05/23/2001 | CN1295981A Method and apparatus for treating sewage from catering business |
| 05/16/2001 | EP1098690A1 Method and apparatus for filtering particles out of a liquid |
| 05/16/2001 | CN2430204Y Pre processing machine of pure water machine |
| 05/16/2001 | CN1295492A Apparatus for removing material from pressurised filter |
| 05/15/2001 | US6231763 Regeneration of water treatment media |
| 05/15/2001 | US6231756 Rotary distributor speed control system for trickling filters |
| 05/10/2001 | WO2001032560A2 Filtration device for liquids |
| 05/10/2001 | WO2001032286A1 Filling out-flow preventing filter and absorber attached with it |
| 05/10/2001 | WO2000037158A9 Underdrain block for filter media system |
| 05/10/2001 | DE19950064A1 Filteranlage für Wasser Filter system for water |
| 05/09/2001 | EP1097905A2 Membrane magnetic separating apparatus |
| 05/09/2001 | CN2429237Y Granular filtering material filter with mechanic stirrer |
| 05/09/2001 | CN2429236Y Filter for flow media with a lot of dust |
| 05/08/2001 | US6228256 Apparatus for cleaning a pool bottom having a sand bed |
| 05/03/2001 | WO2001030474A1 Filter apparatus with sand filter bed |
| 05/03/2001 | DE19952757A1 Filtereinrichtung für Flüssigkeiten Filter device for liquids |
| 05/02/2001 | CN1065216C Method and system for physical purifying of industrial sewage |
| 04/25/2001 | EP1094311A2 Fluid sampling |
| 04/25/2001 | EP0784503B1 A filter, apparatus including the filter and a method of use of the apparatus |
| 04/25/2001 | CN1064855C Apparatus and method for improving gas backewash in lateral underdrains |
| 04/24/2001 | US6221258 Method and apparatus for acoustically driven media filtration |
| 04/19/2001 | WO2001026772A2 Recyclable filter cartridge and pressure vessel |
| 04/18/2001 | EP1092682A1 Device for filtering and ultraviolet disinfection of water |
| 04/18/2001 | CN2426874Y Micro-bubble oxygen transfer organic effluent disposal biological filter |
| 04/17/2001 | US6217782 Combined ultrasonic cleaning and washing of filter disks |
| 04/17/2001 | US6217760 Waste water treatment system |
| 04/17/2001 | US6217757 Storm drain filter with vertical screens |
| 04/11/2001 | EP1089943A1 Filter cartridge assembly |
| 04/11/2001 | CN1290567A Stripping two-way filter |
| 04/11/2001 | CN1290566A Transverse flow filter |
| 04/10/2001 | US6215088 Method for the partial fusion of objects |
| 04/05/2001 | WO2001023681A1 Sewage filter |
| 04/04/2001 | CN1063982C 流体处理装置 The fluid processing apparatus |
| 03/29/2001 | WO2001021281A1 Coolant fluid cleaning method and apparatus |
| 03/29/2001 | WO2001021274A1 Improvements to filters with granular material bed, in particular for water treatment |
| 03/28/2001 | CN2424815Y Fiber filter |
| 03/22/2001 | DE19941706A1 Removing exhausted water treatment material from container, e.g. in desalination, comprises injecting gas or liquid to set filter bed in rotation and removing rotating column of material through outlet at base |
| 03/14/2001 | CN1063158C Composite circulating water treating system |
| 03/08/2001 | DE19942325A1 Double-concentric, cylindrical, well-water filter comprises perforated tubes, one jacketing the other and holding filter material in interspace |
| 02/21/2001 | CN1284398A Sewage treatment technology with filtering sand tank |
| 02/20/2001 | US6190568 Method for retrofitting a false bottom underdrain filter system |
| 02/20/2001 | US6190553 Filtration; plant purification |
| 02/15/2001 | WO2001010786A1 An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
| 02/15/2001 | WO2001010531A1 Filter underdrain system for backwash flow and method for measuring same |
| 02/15/2001 | DE19936757A1 Waste water filter medium compressed and compressed by cable arrangement lowering filtration costs for large volume of water |
| 02/15/2001 | CA2380843A1 An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
| 02/14/2001 | CN2418933Y High performance water saving filter |
| 02/01/2001 | WO2001007140A1 Method of removing a filter medium from a filter vessel, and evacuating device for use in such method |
| 01/31/2001 | CN2416948Y Water purifying apparatus |
| 01/30/2001 | US6180010 Removal of glycerides, fatty acid, unsaturated hydrocarbons and (meth)acrylate polymers |
| 01/24/2001 | EP1069935A1 Apparatus for removing material from a pressurised filter |
| 01/24/2001 | CN1060967C Method for recovering crystals from slurry |
| 01/23/2001 | US6177004 Septic system filter apparatus |
| 01/17/2001 | EP1068888A1 Filter assembly with bypass valve and indicator means |