| Patents for B01D 37 - Processes of filtration (4,716) |
|---|
| 12/14/1993 | US5269912 Filtering particulate suspension |
| 12/14/1993 | US5269911 Wastewater treatment |
| 11/30/1993 | CA1324845C Process for improving the sedimentation and filtering properties of waste waters containing clay minerals |
| 11/30/1993 | CA1324842C Process for fine coal cleaning |
| 11/25/1993 | WO1993023507A1 Apparatus for removing acidic impurities from lubricating oil |
| 11/25/1993 | WO1993023335A1 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 11/25/1993 | WO1993023140A1 A device for separation of solid particles from a liquid mixture |
| 11/16/1993 | US5262069 Filter cake scraping method and rotary drum filter using the same |
| 11/16/1993 | US5262068 Integrated system for filtering and dispensing fluid having fill, dispense and bubble purge strokes |
| 11/09/1993 | CA1324089C Filtration apparatus |
| 11/02/1993 | US5258118 For internal combustion engines |
| 10/27/1993 | CN1077698A Process and apparatus for treating marsh gas digest |
| 10/26/1993 | US5256299 Method and apparatus for liquid treatment |
| 10/26/1993 | US5256169 Methods and compositions for dewatering and suppressing dust during processing of fine coal |
| 10/20/1993 | EP0565857A1 Pressure liquid filter |
| 10/14/1993 | WO1993019831A1 Blood separation filter assembly and method |
| 10/12/1993 | US5252224 Supercritical water oxidation process of organics with inorganics |
| 09/30/1993 | WO1993019356A1 Method and apparatus for rapidly testing the integrity of filter elements |
| 09/30/1993 | WO1993018840A1 Self-supporting coated filter element |
| 09/30/1993 | DE4209519A1 Verfahren und Gerät zum schnellen Testen der Unversehrtheit von Filterelementen Method and apparatus for rapidly testing the integrity of filter elements |
| 09/21/1993 | US5246589 Repaired filtration elements for polymer manufacture |
| 09/16/1993 | DE4217666A1 Filter assembly - has candle-shaped filters on an intermittent rotating plate to increase the filter density |
| 09/16/1993 | DE4208195A1 Selbsttragendes, beschichtetes filterelement Self-supporting, coated filter element |
| 09/16/1993 | DE4207564A1 Verfahren und vorrichtung zum filtern von fluessigkeiten, insbesondere von walzoel Method and apparatus for filtering liquids, especially walzoel |
| 09/14/1993 | US5244585 Method of cleaning porous ceramic filters |
| 09/10/1993 | CA2091296A1 Brine recycling method and an apparatus therefor |
| 09/02/1993 | WO1993016960A1 Apparatus for treatment of effluent |
| 09/02/1993 | WO1993016782A1 Water reclamation system and method |
| 09/01/1993 | CN2141319Y Kerosene filter |
| 08/19/1993 | WO1993015854A1 Coolant and lubricant installation for rolling mills |
| 08/18/1993 | EP0410961B1 A method and an apparatus for separating solid particles from a liquid |
| 08/17/1993 | US5236601 Control process for a bodyfeed filter system to complete injection by filtration endpoint |
| 08/17/1993 | US5236596 Method and apparatus for dewatering |
| 08/17/1993 | US5236581 Spa with filter assembly accessible through its coping lip |
| 08/12/1993 | DE4303427A1 Filter with min. dead space in housing for filtered coating soln. - to minimise coagulation, e.g. for filtering thixotropic magnetic coating soln. for diskette or video tape prodn. |
| 08/12/1993 | DE4203687A1 Kuehl- und schmiermittelanlage fuer walzwerke Cooling and lubricating system for rolling mills |
| 08/04/1993 | EP0553438A1 Liquid filtration process |
| 08/04/1993 | EP0546089A4 Contact lens purification system |
| 07/27/1993 | US5230793 Chip filtration and removal system |
| 07/22/1993 | DE4300493A1 Sludge filter - has closure blocks to be operated for rinsing to clean filter without interrupting the filtration |
| 07/21/1993 | EP0532633A4 Method for producing high solids slurries of clay water products |
| 07/20/1993 | US5228987 Method and apparatus for clarifying liquids |
| 07/14/1993 | EP0550470A1 Improved filtration technique. |
| 07/13/1993 | US5227076 Clarification, back-pulse filtration |
| 07/13/1993 | US5227064 Filter for continuous filtration |
| 07/13/1993 | CA1320148C Method for recovering crystals from crystal-containing slurry |
| 07/06/1993 | US5225081 Filtration for lubricant purification with thermoplastic resin and active carbon |
| 07/01/1993 | DE4142292A1 Multilayer filter - contains calcinated diatomite as active filter material |
| 06/29/1993 | US5223155 Discharging of filter cake using water pulses |
| 06/29/1993 | US5223153 Iron hydroxide removal method |
| 06/29/1993 | US5223150 Water reclamation system and method |
| 06/29/1993 | CA1319637C Method and system for treating drill cuttings slurries and the like |
| 06/24/1993 | WO1993011848A1 Repair of filtration elements for polymer manufacture |
| 06/23/1993 | EP0547353A2 Method and apparatus for treating wastes from metallworking of ferromagnetic materials |
| 06/19/1993 | CA2085675A1 Method and apparatus for processing wastes from the machining of ferromagnetic materials |
| 06/16/1993 | EP0546089A1 Contact lens purification system. |
| 06/16/1993 | CN1021201C Filter for separation of solid from hot gas or liquid |
| 06/10/1993 | WO1993010880A1 Method and filter unit for purification of a circulating liquid in a closed circuit |
| 06/08/1993 | US5217659 Repair of filtration elements for polymer manufacture |
| 06/03/1993 | DE4234507A1 Controlling sludge removal from water - by using capillary suction time measurements to control amount of polyelectrolyte coagulant to be added |
| 05/27/1993 | WO1993009863A1 System for processing separate containers of biological fluid |
| 05/25/1993 | US5213687 Apparatus for filtering mineral slurries |
| 05/12/1993 | EP0540825A1 Filter aid and method for using same for reclaiming oil coolants use for metal working |
| 05/12/1993 | EP0540731A1 Systems and methods for removing undesired matter from blood cells. |
| 05/11/1993 | US5209842 Oil enhancing multifunction filter |
| 05/11/1993 | US5209841 Filter belt arrangement for pressurized chamber filter |
| 05/05/1993 | EP0532494A4 Improved water clarifying apparatus |
| 05/05/1993 | CN2131593Y Device for filtering deposit with eddy current |
| 05/04/1993 | US5207907 Compact apparatus for treating sludge by draining and pressing |
| 04/14/1993 | CN1070894A Mixing-ultra filtering method treating system for cotton size black fluid |
| 04/06/1993 | US5200086 Emulsion destabilization and treatment |
| 04/06/1993 | CA1315668C Filter-device and a filter-appliance from such filter-device |
| 03/31/1993 | EP0534085A2 Presurized chamber liquid filter |
| 03/25/1993 | DE4131122A1 Dishwasher waste water treatment - has a buffer to flock contained matter for sepd. by a sieve or filter |
| 03/24/1993 | EP0532633A1 Method for producing high solids slurries of clay water products. |
| 03/24/1993 | EP0532494A1 Improved water clarifying apparatus. |
| 03/23/1993 | US5196113 Processing mixed waste |
| 03/18/1993 | WO1993004763A1 Gas plasma treated porous medium and method of separation using same |
| 03/18/1993 | DE4230825A1 Filter back-flushing control for liq.-solid filtration systems - using differential pressure monitoring corrected for flow-rate and viscosity variation |
| 03/17/1993 | EP0531817A2 Porous filter for liquid purification, and liquid purifying filter assembly and liquid purification plant employing the same |
| 03/04/1993 | WO1993003812A1 Dewatering slurries |
| 03/04/1993 | CA2115153A1 Dewatering slurries |
| 03/02/1993 | US5190657 Interlocking textile web |
| 02/25/1993 | DE4127477A1 Stacked filter for uniform filter aid layer build=up - comprises flushing channel contg. element passing liq. stream unidirectionally and blocking or reducing flow in opposite direction |
| 02/18/1993 | WO1993002967A1 Dewatering of aqueous suspensions |
| 02/18/1993 | WO1993002780A1 Improved filtration process |
| 02/09/1993 | US5185135 By gravity-assisted vacuum filtraiton; polymeric filtration aid |
| 02/09/1993 | US5185078 Separator apparatus and method for regenerating emulsions with downstream monitoring filter |
| 02/04/1993 | DE4125331A1 Verbessertes filtrationsverfahren Improved filtration process |
| 02/03/1993 | EP0487643A4 Precoat septum with a continuous filament yarn |
| 02/02/1993 | US5183572 Removal of ink and other particles from wash solutions such as cleaning component of printing press blankets to render reusable |
| 02/02/1993 | US5183562 Apparatus for coagulating treatment |
| 01/28/1993 | DE4120971A1 Filterverfahren und filtervorrichtung zum filtern von fluessigkeiten Filtering method and filter device for filtering liquids |
| 01/23/1993 | WO1993001880A1 Blood filter and method of filtration |
| 01/21/1993 | WO1993000979A1 Method of drying a filter cake using a surface layer |
| 01/19/1993 | US5180505 Dewatering method |
| 01/12/1993 | US5178824 Apparatus for grinding nuclear fuel pellets in presence of liquid, trough below grinder, trough outlet, vessel with declivitous sides and bottom outlet, collection chamber, obturating means, sensing means, recirculation circuit, pump |
| 01/12/1993 | US5178773 High efficiency filter to remove suspended solids from aqueous media |
| 01/12/1993 | US5178764 Process for cleaning or purifying aqueous n-methylmorpholine-n-oxide solutions |
| 01/07/1993 | WO1993000416A1 Filter system and method for rejuvenating used lubricating oils |