| Patents for B01D 37 - Processes of filtration (4,716) |
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| 06/12/2003 | WO2003047715A1 Chemical feeder |
| 06/11/2003 | EP1318159A2 Use of insoluble highly cross-linked popcorn polymers as filtering aid and/or stabilizer |
| 06/11/2003 | EP0876187B1 A device for measuring gas pressure |
| 06/11/2003 | CN1422879A Use of non-soluble high cross-linked rice-flower shape polymer as assitant and/or stabilizer |
| 06/11/2003 | CN1111132C Diatomite purifying treatment method |
| 06/05/2003 | WO2003045566A1 Methods of increasing flotation rate |
| 06/05/2003 | WO2003045530A1 A cleaning efficiency testing method and apparatus for a filter in a filtering system |
| 06/05/2003 | CA2467582A1 A cleaning efficiency testing method and apparatus for a filter in a filtering system |
| 06/04/2003 | EP1316534A1 Method for composting a slurry by sequential filtration with a carbonaceous substrate and installation thereof |
| 06/04/2003 | EP0968040B1 Method of cleaning liquid cooling lubricants |
| 06/04/2003 | CN2554238Y Water-saving device for kitchen and toilet |
| 05/28/2003 | CN1420728A Adsorbent filtration system for treating used cooking oil or fat in frying operation |
| 05/27/2003 | US6569329 Personal water filter bottle system |
| 05/22/2003 | US20030095894 Suctioning the fluid through gel film to filter out the objects; micro-particles can be removed by keeping suction pressure weak to keep rate fixed and to maintain capacity while delaying clogging of second filter |
| 05/22/2003 | US20030094426 Colloidal waste water solutions containing microparticles filtrated using a second filter, having a gel film that is formed by suction on the surface of a first filter. |
| 05/21/2003 | CN2551691Y Energy-saving water secondary utilizing installation |
| 05/21/2003 | CN2551690Y Urban waste water reuse circulation installation |
| 05/15/2003 | WO2003039714A1 Methods of using modified natural products as dewatering aids for fine particles |
| 05/15/2003 | US20030089647 Filtration device |
| 05/14/2003 | EP1242159B1 Method and device for supplying filtering aids and/or process materials during filtration |
| 05/14/2003 | CN1417424A Water supply system supplying high-quality water to urban residents |
| 05/14/2003 | CN1417131A Elimination method of eliminatld article |
| 05/14/2003 | CN1417130A Elimination method of eliminated article |
| 05/14/2003 | CN1417120A Filtering process of water slurry of Y-type molecular sieve |
| 05/14/2003 | CN1417119A Filtering method of water slurry of Y-type molecular sieve |
| 05/14/2003 | CN1416935A Filter |
| 05/07/2003 | CN2549054Y Water-saving device of bath appliances |
| 05/07/2003 | CN2549052Y High-rise building living waste water utilizing treater |
| 05/06/2003 | US6558554 Method for switching filters on-line without bubbles and with zero liquid waste |
| 05/01/2003 | WO2003035215A1 A device for purifying liquid in a liquid reservoir and a transformer provided with such a device |
| 04/30/2003 | CN1414875A Method and device for supplying filtering aids and/or process materials during filtration |
| 04/29/2003 | US6555014 Filtering aid is fed to a dosing device by a delivery device, and the filter aid is supplied to an injecting container and/or to a filter element via the dosing device. |
| 04/24/2003 | WO2003033103A1 Dynamic filter module |
| 04/23/2003 | CN2546504Y Peasant family automatic obtaining and storing water system |
| 04/23/2003 | CN1413279A Method of draining water from low-consistency water-fibre suspensions |
| 04/23/2003 | CN1412393A Floor house water-saving device with water quality treatment function |
| 04/22/2003 | US6551458 Method and apparatus for recovering fibers from white water of paper mill |
| 04/22/2003 | CA2211302C Electrocoalescent system for decontaminating water streams |
| 04/17/2003 | US20030070994 Comprises weir tank, filtration assembly, and a holding tank, from wherein the die is pulled, then pressurized and sprayed in a casting machine |
| 04/16/2003 | EP1301260A1 Improved process for filter aid production in alumina refineries |
| 04/15/2003 | US6547969 Adding a calcium compound; coagulation; filtration |
| 04/03/2003 | US20030062299 Leukocyte reduction filtration media |
| 04/02/2003 | CN2542734Y Domestic water-saving water supply device |
| 03/27/2003 | WO2003024567A1 Mineral compositions for filtering liquid foods, regeneration of said compositions and body feed filtration recycling |
| 03/27/2003 | WO2003024564A1 Register discharge with profiled tubes for precoat filters |
| 03/27/2003 | WO2003024563A1 Inlet distributor for precoat filters |
| 03/26/2003 | EP0802975B1 Process for reducing rna concentration in a mixture of biological material using diatomaceous earth |
| 03/25/2003 | US6537453 Acid-neutralizing filter |
| 03/25/2003 | US6537449 Liquid filter using filtration aid |
| 03/13/2003 | WO2002028786A3 Process and apparatus for treating wastewater |
| 03/13/2003 | US20030047517 Reading fluid pressures at inlet sensor and outlet sensor comprising pressure-sensitive film; generating pressure signals corresponding to first and second fluid pressures; calculating difference between values; comparing |
| 03/12/2003 | EP1291421A1 Process for reducing RNA concentration in a mixture of biological material using diatomaceous earth |
| 03/12/2003 | EP1141537B1 Method for detecting clogging in a fuel filter in an internal combustion engine supply circuit |
| 03/12/2003 | CN2539523Y Negative pressure medical equipment water vapour filter |
| 03/11/2003 | US6531571 Method for the removal of excess amounts of water-soluble amines from mannich condensation products |
| 03/06/2003 | WO2003018988A2 Fuel filter including slow release additive |
| 03/05/2003 | EP1287872A1 Method for filtration of copper electrolyte solution |
| 03/05/2003 | EP1286924A1 Apparatus and method for high speed dewatering of slurries |
| 03/04/2003 | US6526675 Methods of using natural products as dewatering aids for fine particles |
| 02/26/2003 | EP1285684A1 Process for minute dosing of gravity media filters |
| 02/26/2003 | EP1285052A2 Multi-staged fluid filter, and methods of making and using same |
| 02/26/2003 | EP1284802A1 Gravity driven liquid filtration system and method for filtering biological liquid |
| 02/26/2003 | EP1284801A2 Staged oil filter incorporating pelletized basic conditioner |
| 02/25/2003 | US6524471 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. |
| 02/13/2003 | WO2002030543A9 Continuously operable rotating drum pressure differential filter, method and systems |
| 02/11/2003 | US6517733 Continuous flow liquids/solids slurry cleaning, recycling and mixing system |
| 02/05/2003 | CN2533936Y Fast-stirring filter |
| 02/05/2003 | CN1395009A Self-pressurizing sealed water -storing equipment and pipe type wate-purifying machine with said equipment |
| 02/04/2003 | US6515115 Of water-soluble product from a fermentation broth by circulation along a ceramic membrane; trans-membrane pressure of at least 1.5 bar; decreased process time; increased capacity and efficiency |
| 01/30/2003 | WO2003008067A1 Method for using auxiliary filtering agents for filtration purposes |
| 01/30/2003 | US20030019807 Apparatus for filtering impurities out of fluid |
| 01/30/2003 | US20030019595 Method of draining water from low-consistency water-fiber suspensions |
| 01/30/2003 | CA2454326A1 Method for using auxiliary filtering agents for filtration purposes |
| 01/15/2003 | CN2530985Y Water-storage water-saving device |
| 01/15/2003 | CN2530639Y Ultrasonic Chinese drugs extracting pot |
| 01/15/2003 | CN1391637A Filter device of hydraulic systems |
| 01/09/2003 | US20030006200 Flowing a portion of mixed liquor through a screen in a side stream before entering water treatment system |
| 01/02/2003 | EP1268035A1 Method and device for filtering liquids, especially drinks |
| 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 |
| 12/26/2002 | US20020195384 Staged oil filter incorporating timed release oil conditioner |
| 12/26/2002 | US20020195380 Including fuel additive for mixing with fuel |
| 12/25/2002 | CN2527596Y Circulating three-point combined domestic water-saving device |
| 12/25/2002 | CN1386702A Process for refining water glass by precise minipore filter |
| 12/19/2002 | US20020189982 Device for monitoring of a coolant regeneration system |
| 12/18/2002 | EP1266080A1 Method of draining water from low-consistency water-fibre suspensions |
| 12/12/2002 | US20020185454 Full flow particulate and acid-neutralizing filter |
| 12/12/2002 | US20020185453 Acid-neutralizing filter |
| 12/11/2002 | CN2525130Y Household purifying sewage pool |
| 12/11/2002 | CN2525129Y 卫生供水机 Health Water Machine |
| 12/10/2002 | US6491822 Bilgewater is passed upstream of the cross filter membrane through a fluid-pervious filtration media which has been infused with an absorbtion composition |
| 12/05/2002 | WO2002096534A1 Staged oil filter incorporating additive-releasing particles |
| 12/04/2002 | EP1261405A2 Recharge and filter assembly with replaceable cartridge |
| 11/27/2002 | CN2522473Y Fully-automatic sewage utilizing apparatus |
| 11/27/2002 | CN1381296A Equipment and process for prewetting filter |
| 11/26/2002 | US6485641 Water filter cartridge having a proportional flow feeder |
| 11/21/2002 | WO2002092193A1 Combination particulate and acid-neutralizing filter |
| 11/21/2002 | WO2002092192A1 Acid-neutralizing filter |
| 11/21/2002 | WO2002092190A1 Full flow particulate and acid-neutralizing filter |
| 11/21/2002 | US20020170852 Filter device |
| 11/21/2002 | US20020170280 Smoke suppressant is adsorbed on a strip of sponge or mesh made of non-woven synthetic fibre |