| 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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| 12/29/1993 | CN2150783Y Water magnetizing cup |
| 12/28/1993 | US5273904 Apparatus for purifying islets of Langerhans |
| 12/15/1993 | EP0553293A4 Rotary filter with external adjustment of blowback valve |
| 12/15/1993 | CN2149386Y Quick water-filtering device |
| 12/15/1993 | CN1079450A Separating closed circular water treating system for swimming pool |
| 12/14/1993 | US5269920 Cap system for underdrains in gravity filters |
| 12/14/1993 | US5269911 Wastewater treatment |
| 12/01/1993 | EP0572083A2 Improved multi-lateral filter underdrain block |
| 12/01/1993 | CN2147889Y Lever balance water-supplying filter |
| 11/28/1993 | CA2096377A1 Dual lateral filter underdrain block |
| 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 |
| 11/24/1993 | CN2147031Y Double back wash and pressure type sand filter apparatus |
| 11/23/1993 | US5264184 Device and a method for separating liquid samples |
| 11/23/1993 | US5264129 Filter device |
| 11/18/1993 | EP0352272B1 Arrangement for an inlet pipe in a rotating drum sieve |
| 11/17/1993 | CN2146482Y Integrated water purifier |
| 11/17/1993 | CN2146290Y Gas-water back-flushing filter head |
| 11/09/1993 | CA1324089C Filtration apparatus |
| 11/03/1993 | CN2145060Y Whole-plastic double multi-hole gas-water recoil washing filter brick |
| 10/26/1993 | US5256299 Method and apparatus for liquid treatment |
| 10/26/1993 | CA1323583C Moving bed filtration apparatus and method |
| 10/20/1993 | CN2144013Y Automatic backwash filter-material filter |
| 10/20/1993 | CN2144012Y Mechanically extruded filter |
| 10/20/1993 | CN2144011Y Protruded packing filter |
| 10/20/1993 | CN2144010Y Fast filter chamber using synthetic fibre as filter material |
| 10/20/1993 | CN1077393A Multiple density grade all ceramic filter material |
| 10/19/1993 | US5254246 Water reclamation system |
| 10/19/1993 | US5254241 Loading control system for a cyclical centrifugal machine which adjusts pinch position |
| 10/12/1993 | US5252231 Washing cycle by feeding the air, agitating, separating through sedimentation according to the difference in volumic mass |
| 10/12/1993 | US5252230 Granulated filter for the filtration of fine graded suspensions |
| 10/09/1993 | CA2086697A1 High temperature filter bag support rings |
| 10/06/1993 | CN2143133Y Super-clean water filter |
| 10/06/1993 | CN2143131Y Fibre ball washing filter |
| 09/29/1993 | EP0562722A1 Air duct block for air/water underdrain systems in gravity filters |
| 09/29/1993 | EP0562182A1 Filter underdrain block |
| 09/28/1993 | US5248417 Double flow-through filtration apparatus |
| 09/28/1993 | US5248415 High speed upward flow filtration apparatus |
| 09/26/1993 | CA2063969A1 Filter underdrain block |
| 09/22/1993 | EP0561549A2 Method and apparatus for purifying islets of langerhans |
| 09/21/1993 | US5246580 Apparatus for separating solid particles from a liquid |
| 09/15/1993 | EP0560215A1 Process and device for filtering dirt particles from a liquid |
| 09/08/1993 | EP0383788B1 Method and apparatus for filtering contaminants |
| 09/08/1993 | CN1075937A Water sterilizing and purifying apparatus |
| 09/07/1993 | US5242589 Filter that changes the direction of water current arbitrarily |
| 09/07/1993 | CA1321955C Water repurification method of city water and its equipment |
| 08/31/1993 | US5240593 Apparatus for the purification of fluids |
| 08/31/1993 | CA1321760C Method for thickening of slurry and for its treatment with liquid as well as a drum filter |
| 08/26/1993 | CA2085680A1 Air duct block for air/water underdrain systems in gravity filters |
| 08/25/1993 | EP0556362A1 Method and device for the filtration of a liquid containing suspension particles. |
| 08/25/1993 | EP0556188A1 Candle precoated filter for residual volume filtration. |
| 08/25/1993 | EP0548289A4 Method of washing an upflow filter and filter bed employed in said filter |
| 08/25/1993 | EP0524944A4 Two-chamber fluid/solids treatment vessel |
| 08/25/1993 | CN2140777Y 便携式净水器 Portable water purifier |
| 08/24/1993 | US5238571 Arrangement for separating entrained particles from a stream of molten metal |
| 08/24/1993 | US5238560 Washable filter |
| 08/24/1993 | US5238559 Filter device |
| 08/24/1993 | CA1321550C Filter apparatus with bypass prevention |
| 08/19/1993 | WO1993015821A1 Liquid filtration module and apparatus |
| 08/19/1993 | CA2107888A1 Liquid filtration module and apparatus |
| 08/15/1993 | WO1993015819A1 Filter for free-flowing materials, in particular plastic melts containing impurities |
| 08/10/1993 | US5234600 Apparatus and method for automatically controlling the permeability of a traveling bridge filter system |
| 08/05/1993 | WO1993015265A1 Method and device for separating a suspension, preferably a fibre suspension |
| 08/05/1993 | WO1993015021A1 Dissolved air flotation |
| 08/05/1993 | WO1993014857A1 Method for filtering mineral slurries |
| 08/05/1993 | WO1993014856A1 Apparatus for filtering mineral slurries |
| 08/05/1993 | WO1993014855A1 Method for filtering mineral slurries |
| 08/05/1993 | WO1993014854A1 Apparatus for filtering mineral slurries |
| 08/05/1993 | CA2106207A1 Method and device for separating a suspension, preferably a fibre suspension |
| 08/04/1993 | EP0553293A1 Rotary filter with external adjustment of blowback valve. |
| 08/04/1993 | EP0553076A1 A method of washing filters, and filters for liquid filtration. |
| 08/04/1993 | EP0534985A4 Water purification system with filter cleaning mechanism |
| 08/03/1993 | US5232592 Cap for underdrains in gravity filters |
| 08/03/1993 | US5232048 Well screen with increased outer surface area |
| 07/22/1993 | DE4201041A1 Filter for liquids, esp. internal combustion engine lubricants |
| 07/21/1993 | EP0545934A4 Filter apparatus for machine tool coolant |
| 07/21/1993 | CN2138518Y 过滤器 Filter |
| 07/15/1993 | DE4200566A1 Replaceable cartridge for electric drinks-brewing machine - has inflow and outflow sieve with rectangular holes, sealing rims, and sealing lip. |
| 07/14/1993 | CN1074199A Circulating sludge method for integrating water supply with drainage channels |
| 07/13/1993 | US5227077 Launder with baffle system for recovering filtration media in solution |
| 07/13/1993 | CA1320149C Vacuum actuated scraper arrangement for a drum filter |
| 07/13/1993 | CA1320148C Method for recovering crystals from crystal-containing slurry |
| 07/07/1993 | EP0550297A2 Filter for molten metal with perforated plates made from refractory material |
| 07/07/1993 | CN2137556Y Automatic water-supplying filter |
| 06/30/1993 | EP0548289A1 Method of washing an upflow filter and filter bed employed in said filter |
| 06/30/1993 | CN1073663A Washing and dyeing wastewater treatment and renovation |
| 06/29/1993 | US5223154 Controlling water pollution |
| 06/29/1993 | US5223129 Multi-layer aerating filter |
| 06/24/1993 | WO1993011850A1 Improvements in or relating to belt filters |
| 06/24/1993 | DE4142612A1 Filtering aq. suspensions in filter column - with closed backflushing circuit fed with filtered liq., used for treating contaminated aq. solns., coolants and lubricants from metal machining, etc. |
| 06/24/1993 | CA2125163A1 Improvements in or relating to belt filters |
| 06/16/1993 | EP0545934A1 Filter apparatus for machine tool coolant. |
| 06/16/1993 | CN2136065Y Filter for contained powdered ion exchanger |
| 06/08/1993 | US5217607 Water decontamination system with filter, electrostatic treatment and UV radiation chamber |
| 06/02/1993 | EP0509988A4 Plastic-jacketed filter underdrain block |
| 06/02/1993 | CN1021018C Filter apparatus for filtering liquid |
| 06/02/1993 | CN1021017C Water repurification method of city water and its equipment |
| 05/26/1993 | CN2134221Y Household health-care purifying drinker |
| 05/25/1993 | CA1318259C Filter apparatus and method |
| 05/25/1993 | CA1318258C Filtration apparatus |