| Patents for B01D 37 - Processes of filtration (4,716) |
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| 11/20/2002 | EP0813442B1 Method for enriching rare cell population |
| 11/20/2002 | CN2521265Y Water-saving cistern for water flushing toilet bowl |
| 11/20/2002 | CN2521261Y Automatic water-saving device for washing machine |
| 11/20/2002 | CN1380475A Water-saving equipment for homebuilding and method |
| 11/19/2002 | CA2112494C Method and apparatus for rapidly testing the integrity of filter elements |
| 11/13/2002 | EP1089799A4 Apparatus and method for recovering photoresist developers and strippers |
| 11/12/2002 | US6478958 Apparatus for filtering impurities out of fluid |
| 11/12/2002 | CA2103456C Liquid filtration and incineration |
| 11/05/2002 | US6475393 Method and apparatus for removing pernicious contaminants from bilgewater discharge |
| 11/05/2002 | US6475379 Recharge and filter cartridge |
| 11/05/2002 | US6474289 Automatic switching duplex filterhead and diesel fuel conditioning system |
| 10/30/2002 | CN2518566Y Pressure water purifier |
| 10/24/2002 | US20020153331 Particulate polymers as filter aids |
| 10/23/2002 | EP1250948A1 Pre-coat filter |
| 10/23/2002 | CN2517798Y Secondary reusing appts. for living waste water |
| 10/23/2002 | CN2517793Y Water saving washing appts. |
| 10/16/2002 | CN2516615Y Domestic sewage clarificator |
| 10/15/2002 | US6464887 Adjuvant for the filtration of liquids and its use for microbial decontamination |
| 10/09/2002 | CN2515279Y Circulating water flushing device for toilet |
| 10/08/2002 | US6461524 Method of filtering a fluid |
| 10/03/2002 | US20020139758 Method and apparatus for removing particulate contaminants from commercial laundry waste water |
| 10/02/2002 | CN1372487A Method for filtration of copper electrolyte solution |
| 10/02/2002 | CN1371925A Granule polymer used as filter aid |
| 09/26/2002 | WO2002074413A1 Filter element |
| 09/26/2002 | WO2002074412A1 Filter candle |
| 09/26/2002 | WO2002074410A1 Pre-coated filter |
| 09/25/2002 | EP1243303A1 Filter candle |
| 09/25/2002 | EP1243302A1 Filter candle |
| 09/25/2002 | EP1243301A1 Filter candle |
| 09/25/2002 | EP1242747A1 Filter device of a hydraulic systems |
| 09/25/2002 | EP1242159A1 Method and device for supplying filtering aids and/or process materials during filtration |
| 09/19/2002 | US20020131875 Filter unit, chemical liquid supply system, and chemical liquid supply method |
| 09/18/2002 | EP1240932A2 Filter unit, chemical liquid supply system, and chemical liquid supply method |
| 09/18/2002 | CN1369599A Domestic water storing container |
| 09/17/2002 | US6452995 Device for measuring gas pressure |
| 09/12/2002 | US20020128585 Medical system, method and apparatus employing mems |
| 09/05/2002 | US20020121488 Use of particulate polymers as filter aids for aqueous liquids |
| 09/05/2002 | US20020121485 Maintained by counting the number of times the machine tool is operated and automatically servicing the filter unit, as by backflushing, after the machine tool has been used a preset number of times. |
| 09/05/2002 | US20020121483 Filter cleaning method |
| 08/29/2002 | WO2002066140A1 Method and device for filtering liquids, especially drinks |
| 08/29/2002 | DE10108957A1 Verfahren und Vorrichtung zum Filtrieren von Flüssigkeiten, insbesondere Getränken Method and apparatus for filtering liquids, in particular beverages |
| 08/29/2002 | DE10108386A1 Teilchenförmige Polymerisate als Filterhilfsmittel Particulate polymers as filter aids |
| 08/28/2002 | EP1234608A1 Polymer particles as filter aid |
| 08/28/2002 | EP1128889A4 Controlling the supply of bodyfeed to a filter |
| 08/22/2002 | US20020113014 Apparatus and methods for separating liquids from solids |
| 08/22/2002 | DE10107035A1 Verfahren und Vorrichtung zur Verlängerung der Standzeit von Filtermedien Method and apparatus for extending the life of filter media |
| 08/21/2002 | CN1364650A Curved filter |
| 08/14/2002 | CN1363420A Utilization of microparticle polymer as aquo-liquid filter agent |
| 08/07/2002 | CN1362560A Water supply system for building |
| 08/06/2002 | US6428712 Gravity driven liquid filtration system and method for filtering biological liquid |
| 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 |
| 08/01/2002 | WO2002004090A3 Continuous flow liquids/solids slurry cleaning, recycling and mixing system |
| 07/31/2002 | EP0883576B1 Particle dewatering device |
| 07/30/2002 | CA2118686C Gas plasma treated porous medium and method of separation using same |
| 07/25/2002 | WO2002057190A1 Apparatus and methods for separating liquids from solids |
| 07/25/2002 | US20020099174 Filtration of plasma mixtures using cellulose-based filter aids |
| 07/25/2002 | CA2435384A1 Apparatus and methods for separating liquids from solids |
| 07/16/2002 | US6419835 Filtration of liquid slurry |
| 07/11/2002 | WO2002053261A1 Housing assembly for a cooking oil cleaner and filter assembly therefor |
| 07/10/2002 | CN1357401A Fitlering method |
| 07/10/2002 | CN1357400A Filter |
| 07/04/2002 | DE10065427A1 Verwendung teilchenförmiger Polymerisate als Filterhilfsmittel für wässrige Flüssigkeiten Use of particulate polymers as filter aids for aqueous fluids |
| 07/03/2002 | EP1219349A2 Use of particulate polymerisates as filter aids for aqueous liquids |
| 06/27/2002 | US20020079267 Process for direct filtration of wastewater |
| 06/20/2002 | US20020074099 Method and apparatus for recovering fibers from white water of paper mill |
| 06/18/2002 | US6406622 Apparatus for filtering a fluid |
| 06/18/2002 | US6406555 Homogeneous solution by mixing through a filter, ammonium hydroxide, to remove residue from a semiconductor wafer which reduces evaporation and avoids the risk of exposure to hazardous chemicals |
| 06/12/2002 | CN1353009A Three-effect composite oxide catalyst and its preparing process |
| 06/11/2002 | US6401938 Filter element for a liquid filter using a filtration aid |
| 06/05/2002 | EP1169107A4 Leukocyte reduction filtration media |
| 05/29/2002 | EP1209126A2 Water treatment device and a universal housing adaptor |
| 05/23/2002 | US20020060191 Filter life measurement |
| 05/23/2002 | US20020060178 Water treatment device and a universal housing adaptor therefor |
| 05/21/2002 | CA2133407C Blood separation filter assembly and method |
| 05/15/2002 | CN1349576A Method and apparatu sfor recovering fibres from white water of paper mill |
| 05/14/2002 | CA2072957C Filter aid and method for using same for reclaiming oil coolants used for metal working |
| 05/09/2002 | US20020053548 Leukocyte reduction filtration media |
| 05/07/2002 | US6383377 Filtering apparatus and open/close valve for the filtering apparatus |
| 05/02/2002 | WO2002034352A1 Water filter cartridge having a proportional flow feeder |
| 05/02/2002 | EP1199945A1 Adsorbent filtration system for treating used cooking oil or fat in frying operations |
| 05/02/2002 | CA2426222A1 Water filter cartridge having a proportional flow feeder |
| 04/30/2002 | US6379564 Casing, porous filter, active material, nonwoven fiber web |
| 04/25/2002 | WO2002032544A1 Use of polymers as filtering aids and/or stabilizers |
| 04/25/2002 | DE10051266A1 Filter aid used for filtering fruit and fermented drinks comprising polystyrene and silicate, carbonate, oxide, silica gel, diatomaceous earth and/or polymers |
| 04/24/2002 | EP1198638A1 Method and apparatus for recovering fibres from white water of paper mill |
| 04/24/2002 | CN1083286C Pleating apparatus |
| 04/24/2002 | CN1083285C 过滤器 Filter |
| 04/18/2002 | WO2002031428A1 Shell tube type filter and auto-controlled heat recovery system of waste water |
| 04/18/2002 | WO2002030543A1 Continuously operable rotating drum pressure differential filter, method and systems |
| 04/18/2002 | US20020043495 Combination particulate and acid-neutralizing filter |
| 04/18/2002 | DE10048205A1 Vorrichtung und Verfahren zur Filtration von Fluiden Device and method for the filtration of fluids |
| 04/11/2002 | WO2002028907A1 Washing and dewatering of suspensions |
| 04/11/2002 | WO2002028786A2 Process and apparatus for treating wastewater |
| 04/11/2002 | WO2001085882A3 Multi-staged fluid filter, and methods of making and using same |
| 04/11/2002 | CA2424776A1 Washing and dewatering of suspensions |
| 04/04/2002 | WO2002026352A1 Device and method for filtering fluids |
| 04/04/2002 | WO2002026350A1 Methods of enhancing fine particle dewatering |
| 04/04/2002 | WO2002026347A1 Improved filter cleaning method |
| 04/04/2002 | WO2002026340A2 Methods of using natural products as dewatering aids for fine particles |
| 04/04/2002 | WO2002010072A3 Process for direct filtration of wastewater |