| 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) |
|---|
| 05/19/1993 | CN2133585Y Methane filter |
| 05/18/1993 | US5211851 Purification |
| 05/13/1993 | DE4136898A1 Sieve screen panel which is readily replaceable - formed of interlocking self-anchoring elements of resilient rubber material |
| 05/11/1993 | US5209846 Filter vessel provided with a rinsing trough |
| 05/05/1993 | EP0532494A4 Improved water clarifying apparatus |
| 05/05/1993 | CN2131593Y Device for filtering deposit with eddy current |
| 05/05/1993 | CN2131591Y Self-adjusting density fibre filter |
| 05/04/1993 | US5207926 Removal of rusts from water treatment process with sodium hydroxide |
| 05/04/1993 | US5207905 Baffle assembly for air and water backwash of a media filter |
| 04/29/1993 | WO1993007950A1 Granulated filter for the filtration of fine graded suspensions |
| 04/28/1993 | EP0538876A1 Nozzleless underdrain for granular filtration system |
| 04/27/1993 | CA1316838C Thickener |
| 04/22/1993 | DE4133531A1 Deep well water regeneration - has pulsed flow of medium through the filter w.r.t. pH values and filter resistance with independent action on separate sections |
| 04/21/1993 | EP0537520A1 Liquid filter |
| 04/20/1993 | US5203995 Filter for machine tool |
| 04/15/1993 | WO1993006907A1 Liquid filtering and/or treating apparatus |
| 04/13/1993 | US5202022 Porous filter media support plate |
| 04/07/1993 | EP0534985A1 Water purification system with filter cleaning mechanism |
| 04/07/1993 | CN2129167Y Purificating device for drinking water |
| 03/31/1993 | EP0533754A1 Filtration apparatus and method |
| 03/31/1993 | CN2128897Y Water filter |
| 03/30/1993 | US5198124 Particluate filters, disruption of floc, flushing away disrupted floc |
| 03/30/1993 | US5198108 Assembly for removing water for washing filters |
| 03/24/1993 | EP0532494A1 Improved water clarifying apparatus. |
| 03/18/1993 | WO1993005248A1 Separator means for separating problem waste from effluent |
| 03/18/1993 | WO1993004762A1 Candle precoated filter for residual volume filtration |
| 03/17/1993 | EP0531747A1 A self-cleaning strainer |
| 03/10/1993 | EP0530672A1 Washable filter |
| 03/10/1993 | EP0530398A1 Filter cleaning apparatus |
| 03/10/1993 | EP0530331A1 Continuous particle separation process |
| 03/10/1993 | CN1069669A Self-powered mechanical filter tank |
| 03/03/1993 | EP0529845A1 Device and method for purification of liquids and for cleansing of the filtering material used in the device |
| 03/01/1993 | WO1993004760A1 Method and device for the filtration of a liquid containing suspension particles |
| 03/01/1993 | CA2095040A1 Process and device for filtering a liquid with suspensions |
| 02/24/1993 | CN2127323Y Bilateral filter for oily waste water |
| 02/10/1993 | CN2126812Y Compound filter liner for water treatment apparatus of household |
| 02/09/1993 | US5185087 Method of concentrating and deodorizing ruminant waste |
| 02/09/1993 | CA1313504C Filter underdrain system |
| 02/03/1993 | EP0524944A1 Two-chamber fluid/solids treatment vessel |
| 02/03/1993 | EP0283489B1 Apparatus for treating a material sheet |
| 01/27/1993 | EP0524780A1 Flume distribution system with removable block |
| 01/27/1993 | CA2073699A1 Flume distribution system with removable block |
| 01/21/1993 | WO1993000977A1 Method and apparatus for separating gaseous bubbles and sand fro m a liquid flow |
| 01/21/1993 | CA2112991A1 Method and apparatus for separating gaseous bubbles and sand from a liquid flow |
| 01/20/1993 | EP0523293A1 Filtration of liquids |
| 01/12/1993 | CA2046834A1 Underdrain for liquid purification systems |
| 01/07/1993 | EP0521429A1 Multistage and multilayer filter |
| 01/05/1993 | US5176827 Filter underdrain with means to increase gas flow during simultaneous gas/liquid backwashing |
| 12/30/1992 | EP0520000A1 A liquid distributor for use in granular filter beds |
| 12/23/1992 | WO1992022703A1 Washer |
| 12/23/1992 | WO1992022702A1 Drum washer |
| 12/23/1992 | EP0519408A1 Granular media regeneration apparatus and process |
| 12/23/1992 | CA2109574A1 Washer |
| 12/23/1992 | CA2109573A1 Drum washer |
| 12/22/1992 | US5173194 Filtration method and apparatus having a filtrate collection chamber within the filter bed |
| 12/16/1992 | CN2124750U Drinking water purifying sterilizer |
| 12/15/1992 | US5171443 Granular media regeneration apparatus |
| 12/10/1992 | WO1992021422A1 Filtration process and apparatus |
| 12/10/1992 | DE4118283A1 Sand filter bed - uses untreated and cleaned fluid in a sec. circuit to remove particles from the sand and allows a redn. in the water needed to clean the sand |
| 12/10/1992 | CA2110720A1 Filtration process and apparatus |
| 12/09/1992 | EP0517649A1 Fixed bed reactor for biological waste water treatment |
| 12/09/1992 | CN2124235U Multifunction water purifying device for town and country |
| 12/09/1992 | CN2124052U 酸浴过滤器 Acid bath filter |
| 12/08/1992 | US5169528 Filter element |
| 12/01/1992 | US5167924 Immunoassay or monitoring air pollution |
| 12/01/1992 | US5167840 Systems and methods for clarifying liquids |
| 11/29/1992 | CA2043361A1 Process and system for removing dissolved and undissolved contaminants from water |
| 11/25/1992 | EP0514774A1 Continuous backwash filter and method of operation |
| 11/25/1992 | EP0514771A1 System and method of decreasing waste fluid in continuous backwash filtration |
| 11/23/1992 | CA2068778A1 Continuous backwash filter and method of operation |
| 11/23/1992 | CA2068769A1 Method of decreasing wastefluid in continuous backwash filtration |
| 11/18/1992 | CN2121985U Health-care water purifying pot for children preventing cancer |
| 11/18/1992 | CN1066199A Device for separating liquid and solid material out of mixture |
| 11/17/1992 | US5164086 Rotary filter with external adjustment of blowback valve |
| 11/12/1992 | WO1992019356A1 Device for removing dirt particles from water |
| 11/12/1992 | WO1992016272A3 Filter |
| 11/11/1992 | EP0262210B1 Adjustable ramp for dewatering device |
| 11/05/1992 | DE4140892A1 Vorrichtung zum entfernen von schmutzpartikeln aus wasser Apparatus for removing of dirt particles from water |
| 11/04/1992 | EP0511710A1 Device for separating liquid and solid material out of a mixture |
| 11/04/1992 | EP0352320B1 Thickener |
| 11/03/1992 | US5160614 Air duct block for air/water underdrain systems in gravity filters |
| 11/03/1992 | US5160613 Purification underdrain with compensating chamber and baffle isolating backwash gas from backwash water |
| 11/03/1992 | US5160611 Apparatus for aerating water |
| 11/03/1992 | US5160607 Filter for aquarium |
| 11/02/1992 | CA2061241A1 Underdrain for granular medium filter |
| 10/28/1992 | EP0509988A1 Plastic-jacketed filter underdrain block. |
| 10/27/1992 | US5158691 Filter apparatus and method for filtering contaminants from machine tool coolant |
| 10/27/1992 | CA1309359C Filtering system |
| 10/21/1992 | EP0509345A2 Method for the regeneration of filter beds and filter beds with regeneration devices |
| 10/21/1992 | EP0509334A2 Method for screening and filtering solid material suspensions with drum or band machines |
| 10/21/1992 | CN2119262U High-efficient fibre filter |
| 10/20/1992 | US5156738 Apparatus for uniformly distributing gas and/or liquid in an underdrain lateral system |
| 10/18/1992 | WO1992018217A1 Fluid separation devices |
| 10/15/1992 | WO1992017262A1 Filter for liquids, in particular internal-combustion engine lubricant oils |
| 10/15/1992 | DE4131354A1 Fluid filter with annular element |
| 10/14/1992 | EP0507844A1 Method and device for carrying off the filter cake from a filter apparatus. |
| 10/13/1992 | US5154824 Granular media filtration system with improved backwashing |
| 10/07/1992 | EP0507414A2 Cap for underdrains in gravity filters |
| 10/06/1992 | US5152890 Filter device |
| 10/06/1992 | CA2065179A1 Procedure for screening and filtration of suspended solids with drum type or travelling band screens |