| Patents for B01D 25 - Filters formed by clamping together several filtering elements or parts of such elements (5,131) |
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| 04/08/1998 | EP0833685A1 Filtration system for removing solid particles |
| 04/07/1998 | US5736044 Filter cartridge construction and process for filtering particle-containing paint compositions |
| 04/02/1998 | WO1998006561A3 Filter press |
| 03/31/1998 | CA2012832C Traveling bridge filter with surface wash |
| 03/25/1998 | CN1176841A Filtering film of plate and type filter press |
| 03/17/1998 | US5728307 Method of emptying the press chambers of a press filter and an apparatus therefor |
| 03/12/1998 | WO1998009702A1 The method of pressure filtration and washing of solid suspensions in liquid |
| 03/11/1998 | EP0827767A2 Apparatus for dewatering sludges and similar substances |
| 03/11/1998 | EP0827766A1 Membrane for a membrane plate for a plate filter press |
| 03/11/1998 | EP0731728B1 Structure element of a device for the treatment of corrosive materials in heat and stress conditions |
| 03/10/1998 | US5725767 Torsion resistant filter structure |
| 03/03/1998 | US5723046 Drip tray lock mechanism for filter press |
| 02/19/1998 | WO1998006561A2 Filter press |
| 02/18/1998 | CN2274521Y Sewage treating apparatus |
| 01/28/1998 | EP0820853A2 Filter assembly and method for making it |
| 01/15/1998 | DE19628183A1 Operation of membrane filtration presses used to filter syrup in sugar industry |
| 01/14/1998 | EP0818227A1 Suction strainer for shielding an inlet opening of pump suction conduit |
| 01/14/1998 | CN2272437Y Natural ore-bearing rock water-purifier |
| 01/08/1998 | WO1998000219A1 Microcolumn for extraction of analytes from liquids |
| 01/07/1998 | EP0814896A1 Filtration cassette article, and filter comprising same |
| 12/11/1997 | DE19637981C1 Filtration of solids and liquids in filter press |
| 12/10/1997 | CN2269889Y Ring pressing type oil filter |
| 12/03/1997 | CN2269391Y Improved water treatment filter of porous filter tube |
| 11/26/1997 | EP0808204A1 Filtration apparatus |
| 11/26/1997 | CN2268567Y Sucking filter of drinking water apparatus |
| 11/26/1997 | CN1165784A Cross flow back-flushing household water purifier |
| 11/20/1997 | DE19618550A1 Sugar beet press assembly has two or more packets of filter press plates |
| 11/13/1997 | DE19632964C1 Filter press for dewatering sludges |
| 11/06/1997 | WO1997040919A1 Filter for a duct with a filter media inclined to the main flow direction |
| 11/06/1997 | WO1997040918A1 Fluted filter media |
| 11/06/1997 | WO1997040917A1 Inline filter apparatus |
| 11/06/1997 | WO1997040910A1 Filtering device with corrugated and rolled filter media |
| 11/06/1997 | WO1997040908A1 Conical filter |
| 11/06/1997 | CA2252712A1 Inline filter apparatus |
| 10/29/1997 | CN2265852Y Cylinder-cone type reaction filtering dryer |
| 10/15/1997 | CN2264610Y Sealing structure of liquid filtering material |
| 10/09/1997 | WO1997027926A3 Coilable separation elements and suitable housing with coiling drive |
| 10/08/1997 | CN2264035Y Viscose filtering machine |
| 10/07/1997 | US5674384 Filter press with weight-responsive bumping of filter plates |
| 09/30/1997 | US5672272 Unitary plastic filter plate including expandable skins and plastic foam core |
| 09/18/1997 | WO1997033673A1 Filter for fluids having an improved filtering mass |
| 09/12/1997 | WO1997032649A1 Separation apparatus and components thereof |
| 09/09/1997 | US5665231 Full flow/bypass filter assembly |
| 08/21/1997 | WO1997029838A1 Torsion resistant filter structure |
| 08/19/1997 | US5658468 Elastic membrane press filter and filtration method using it |
| 08/13/1997 | CN2259216Y Throttle equipment filter press |
| 08/07/1997 | WO1997027926A2 Coilable separation elements and suitable housing with coiling drive |
| 08/07/1997 | DE19603622A1 Umwickelbare Separationselemente und dafür geeignete Gehäuse mit Umwickelgetriebe Umwickelbare separation elements and for appropriate housing with Umwickelgetriebe |
| 07/30/1997 | EP0786280A2 Membrane filter plate for a filter press |
| 07/23/1997 | CN2258089Y Filter for automatic drainage device of gas storage tank |
| 07/09/1997 | CN1153677A Fixing apparatus for filter of water purifier |
| 06/25/1997 | CN1152474A Ceramic-core water purifier and filter-bottle thereof |
| 06/05/1997 | DE19544472A1 Process for filtration of waste water suspensions with filter press and pressure pump |
| 06/03/1997 | US5635061 Plate shifter mechanism |
| 05/28/1997 | DE19542150C1 Chamber or membrane filter press |
| 05/28/1997 | CN2254768Y Concentration filter press |
| 05/09/1997 | WO1997016232A1 Full flow/bypass filter assembly |
| 04/24/1997 | WO1997014492A1 Filter press with weight-responsive bumping of filter plates |
| 04/23/1997 | CN1147901A Method for producing protein fodder from waste protein liquid |
| 04/09/1997 | CN1146924A Filter element |
| 03/18/1997 | US5611925 Hub ring and supporting plate for a filter and methods for manufacturing these members |
| 03/11/1997 | US5609761 Filter medium and process for making same |
| 02/26/1997 | EP0759318A1 Process for demoisturizing and drying solids/liquid mixtures and apparatus for carrying out the process |
| 02/25/1997 | US5605621 Unloading device for filter press |
| 02/19/1997 | EP0758262A1 Filter cloth |
| 02/18/1997 | US5603827 Membrane filter plate |
| 02/11/1997 | US5601711 Selective separation filter device |
| 02/11/1997 | US5601709 Plate assembly for filter press |
| 02/04/1997 | US5599446 Non-leaking, removable filter element |
| 01/23/1997 | DE19526458A1 Filter cloth for filter presses |
| 01/21/1997 | US5595653 Microcolumn for extraction of analytes from liquids |
| 01/15/1997 | CN1140407A Process for preparing solid pharmaceutical dosage forms |
| 01/14/1997 | US5593580 Filtration cassette article, and filter comprising same |
| 01/09/1997 | DE19522133A1 Filtrationsanlage zur Trennung von Feststoffteilchen Filtration system for removing solid particles |
| 01/03/1997 | WO1997000171A1 Vacuum drying diaphragm filter press plates |
| 01/03/1997 | WO1997000111A1 Filtration system for removing solid particles |
| 01/03/1997 | CA2225084A1 Vacuum drying diaphragm filter press plates |
| 01/03/1997 | CA2224924A1 Filtration system for removing solid particles |
| 01/02/1997 | DE19529556C1 Drying plant halves volume of wet sludge by first mechanical treatment in filter press |
| 12/19/1996 | DE19521555A1 Drying of filter cake in a filter press |
| 12/18/1996 | CN1138140A Filter |
| 12/11/1996 | CN1033491C Filtration membrane cartridge |
| 12/04/1996 | CN2241688Y Water purifying device |
| 11/13/1996 | CN2239837Y Rolling filter-plate ear of chamber filter press |
| 11/12/1996 | US5573667 Belt filter medium |
| 10/23/1996 | EP0738528A2 Filter |
| 10/23/1996 | EP0738527A2 Plate filter press |
| 10/23/1996 | CN2238257Y Filter press for preparation of wort |
| 10/22/1996 | US5567327 Air-assist discharge of filter press cake |
| 10/16/1996 | EP0737065A1 Process for preparing solid pharmaceutical dosage forms |
| 10/09/1996 | CN1132654A Filter press |
| 10/08/1996 | US5562825 Filter element having a flat and non-flat configuration |
| 10/02/1996 | EP0734752A1 Filter press for treating polluted water |
| 10/01/1996 | CA2172435A1 Core blow nozzle |
| 09/24/1996 | US5558773 Method for producing and drying a filter cake, while avoiding entering of the filter cake into a thermoplastic phase |
| 09/19/1996 | WO1996028240A1 Filtration cassette article, and filter comprising same |
| 09/18/1996 | EP0731728A1 Structure element of a device for the treatment of corrosive materials in heat and stress conditions |
| 09/11/1996 | CN2234811Y Efficient plate-frame type filter press |
| 09/10/1996 | US5554302 Core blow nozzle |
| 09/10/1996 | US5554282 Inorganic membrane filtration unit |