| Patents for B01D 25 - Filters formed by clamping together several filtering elements or parts of such elements (5,131) |
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| 09/23/1992 | CN2116521U Quick assembly parts for filter press blanket of coal washery |
| 09/01/1992 | US5143628 Method of the dewatering of sludge |
| 09/01/1992 | US5143609 Method for dewatering and drying a liquid/solid slurry and an apparatus for using the method |
| 08/26/1992 | EP0499859A1 Filtration installation |
| 08/26/1992 | CN2113825U Continuous filtering plate and frame type filter press |
| 08/19/1992 | CN2113100U Inner inlay grillwork type filting plate |
| 08/18/1992 | US5139664 Plate and cell holder |
| 08/06/1992 | WO1992012853A1 Squeezer, in particular for extracting cocoa butter |
| 08/02/1992 | WO1992013624A1 Method and device for separating liquid/solid mixtures |
| 08/02/1992 | CA2101732A1 Method and device for separating liquid/solid mixtures |
| 07/28/1992 | US5133884 Method for pressure filtering and device for carrying out same |
| 07/28/1992 | US5133879 Sludge; separation solids from liquids; drying in stream of air |
| 07/22/1992 | EP0245490B1 Filter press for separating liquids from sludge to obtain a high solid content |
| 07/08/1992 | CN2109240U High-efficiency plate frame filter |
| 06/30/1992 | US5126045 Support plates with meandrical channels for diaphragm filtration |
| 06/25/1992 | DE4111973C1 Sludge dewatering press - includes sludges receiving chamber contg. pressure piston, enabling braking up of caked sludge and draining of filtrate |
| 06/23/1992 | US5124036 Pressing diaphragm and pressing filter plate provided with pressing diaphragm of compression type filter press |
| 06/10/1992 | CN2106647U Enclosed plate and frame type filter press with ceramic filting core |
| 06/03/1992 | EP0487883A1 Apparatus for the dewatering of sludge |
| 06/03/1992 | EP0487845A1 Filter ring |
| 06/03/1992 | CN2105988U Hollow filting board for filter press |
| 05/26/1992 | CA1301666C Filter press with a plurality of membrane filter plates |
| 05/20/1992 | EP0486335A1 Mask filter |
| 05/13/1992 | EP0391895B1 Process for manufacturing fine-structured bodies |
| 05/12/1992 | US5112503 Modular filter assembly |
| 05/12/1992 | US5112502 Washing filter cakes |
| 05/05/1992 | US5110467 Filter press |
| 05/05/1992 | US5110466 Filter press |
| 04/30/1992 | WO1992006760A1 Filter plate for a plate filter press |
| 04/29/1992 | CN2102791U Broaching plate driving and turn plate catch leak device for filter press |
| 04/29/1992 | CN2102790U Compound rubber plate wing type filter press |
| 04/23/1992 | DE4032937A1 Filterplatte fuer eine plattenfilterpresse Filter plate for a plate filter press |
| 04/22/1992 | CN2102146U Combined filter press frame |
| 04/21/1992 | US5106506 Filter stack for insertion in a filter device |
| 04/21/1992 | US5106499 Apparatus for shifting filter plates in a filter press |
| 04/21/1992 | US5106498 Filter press |
| 04/15/1992 | EP0480227A2 Filter plate for filter press |
| 04/15/1992 | CN2101520U Heat seal filting screen plate made of multi-layer nonwoven cloth |
| 04/12/1992 | CA2053178A1 Mash filtre |
| 04/08/1992 | EP0479315A1 Liquid filter apparatus |
| 04/08/1992 | EP0479077A1 Pressure filter with continuous cleaning of the filter surfaces |
| 04/08/1992 | EP0478623A1 Filter plate, filter plate element, and filter comprising same. |
| 04/06/1992 | CA2051561A1 Liquid filter apparatus and method |
| 04/01/1992 | CN2100247U Combined double-face inflated squeezing and filtrating-pressing plate frame |
| 03/31/1992 | US5100548 Membrane plate for filter presses |
| 03/25/1992 | EP0476191A1 Filter press |
| 03/25/1992 | CN2099603U Filtering machine |
| 03/19/1992 | WO1992004108A1 Spiral wound filter apparatus and method |
| 03/18/1992 | CN2098958U Combined filter frame and filter board for filter press |
| 03/17/1992 | US5096591 Spirally, wound filter cartridge, apparatus system and method of manufacture and use |
| 03/10/1992 | US5094760 Fewer hose seals |
| 03/05/1992 | WO1992003216A1 Device for membrane separation |
| 03/03/1992 | US5093000 Filtration apparatus |
| 02/11/1992 | US5087378 Process for enhancing the dewaterability of waste sludge from microbiological digestion |
| 02/04/1992 | CA1295263C Filter press |
| 01/28/1992 | US5084220 Membrane filtration apparatus and method of making a membrane filtration unit |
| 01/28/1992 | US5084175 Pool filter |
| 01/22/1992 | CN2093686U Plate-frame grid filter |
| 01/02/1992 | EP0463354A2 Filter element in spirally wound construction |
| 12/24/1991 | US5075012 Process for dewatering sludges in filter presses |
| 12/19/1991 | DE4015407A1 Rapid filter for liq. and gases - allowing filter cake emptying without opening filter |
| 12/17/1991 | CA1293223C Screen component for modular screening decks |
| 12/11/1991 | EP0460814A1 Process for enhancing the dewaterability of waste sludge from microbiological digestion |
| 12/04/1991 | CN2089834U Sandwich type filter-press filter plate for plate and frame type |
| 12/03/1991 | US5069791 Filter apparatus |
| 12/01/1991 | CA2043585A1 Process for enhancing the dewaterability of waste sludge from microbiological digestion |
| 11/13/1991 | EP0456280A2 Filter press |
| 11/12/1991 | US5064532 Apparatus for shifting filter plates in a filter press |
| 11/12/1991 | CA1291865C Method of assembling filter press type structure |
| 11/06/1991 | EP0455117A2 dehydration press for mud |
| 11/05/1991 | US5062864 Gas filter element |
| 10/30/1991 | EP0453804A1 Filter for aquarium |
| 10/27/1991 | CA2040696A1 Filter for aquarium |
| 10/23/1991 | EP0453342A1 Plate filter-press |
| 10/16/1991 | EP0451947A2 Modular filter assembly |
| 10/16/1991 | CN2086624U Filter for liquid |
| 10/09/1991 | EP0450636A2 Press plate of a cacao press |
| 10/02/1991 | EP0448897A1 Homogeneous substitution method and apparatus for cake using filter press |
| 09/24/1991 | US5051194 Pumping a slurry and separation |
| 09/24/1991 | US5051179 Membrane filter plate for filter presses |
| 09/24/1991 | CA1289480C Filter cartridge including external cell separators |
| 09/18/1991 | CN1013924B Filter press |
| 09/17/1991 | US5049326 Filter element and manufacture method thereof |
| 09/17/1991 | US5049268 Filter plate, filter plate element, and filter comprising same |
| 09/04/1991 | CN1054198A Method for dewatering particle collections |
| 09/03/1991 | US5045199 Stacked filter supports with corresponding profile seals |
| 09/03/1991 | US5045191 Non-clogging filtrate outlet stopper for use in a plate filter press |
| 08/28/1991 | EP0444002A1 Method for dewatering particle collections |
| 08/28/1991 | EP0443469A2 Rotor filter press with divided filter discs |
| 08/07/1991 | EP0440205A1 Pressing diaphragm and pressing filter plate for a compression type filter press |
| 08/07/1991 | EP0439715A2 Apparatus for dewatering sludge |
| 08/06/1991 | US5037540 Plate and cell holder |
| 07/31/1991 | EP0439352A2 Method for producing a filter element |
| 07/31/1991 | CA2034696A1 Pressing diaphragm and pressing filter plate provided with pressing diaphragm of compression type filter press |
| 07/30/1991 | CA2035137A1 Apparatus for extracting water from sludges |
| 07/23/1991 | US5034124 Filter plate, filter plate element, and filter comprising same |
| 07/23/1991 | US5034111 Compressive and electro-osmotic dehydrator |
| 07/11/1991 | WO1991009661A1 Method and device for carrying off the filter cake from a filter apparatus |
| 07/10/1991 | CN2080417U Antiplugging plate and frame press filter |
| 07/09/1991 | US5030349 Filter apparatus |