| Patents for B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor (33,527) |
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| 05/09/1989 | US4828689 Purifier screen of non-welded manufacture |
| 05/05/1989 | WO1989003926A1 Gravel pack for petroleum or water wells |
| 05/05/1989 | WO1989003717A1 Device and method for depletion of the leukocyte content of blood and blood components |
| 05/03/1989 | EP0314024A2 Method of filtering a plastic meltable material and filter apparatus for an extrusion installation to carry out this method |
| 05/03/1989 | EP0313920A2 Method of making filter body formed of cellulose-spinbanded non-woven cloth |
| 05/03/1989 | EP0313553A1 Rotary disc filter |
| 05/02/1989 | US4826609 Filter media for filter systems |
| 05/02/1989 | US4826607 Filter cake |
| 05/02/1989 | US4826598 Hermetically sealed transmission filter |
| 05/02/1989 | US4826597 Filter assembly with removable sheet |
| 05/02/1989 | US4826596 Drum filter having a media supply roll and reroll drum |
| 05/02/1989 | US4826590 Cooking oil filtering system |
| 05/02/1989 | US4826589 Bar screen filter |
| 04/26/1989 | EP0313348A2 Device and method for depletion of the leukocyte content of blood and blood components |
| 04/26/1989 | EP0312759A1 Filter for water purification, especially for swimming pools |
| 04/26/1989 | EP0312590A1 Universally-adaptable pool water filter structures |
| 04/26/1989 | CN1032492A Filter element and its production method |
| 04/25/1989 | US4824567 Fuel oil filter assembly |
| 04/20/1989 | WO1989003240A1 Process and plant for clarifying liquids, in particular raw juice |
| 04/20/1989 | DE3734245A1 Device for liquid offtake from suspensions |
| 04/20/1989 | DE3733971A1 Paper filter for filtering liquids |
| 04/20/1989 | DE3733699A1 Filter |
| 04/19/1989 | EP0312354A2 Slurry filter |
| 04/19/1989 | EP0312273A2 Method and apparatus for treating fiber suspension |
| 04/19/1989 | EP0311917A1 Process and device for filtering and proportioning liquid samples |
| 04/19/1989 | EP0311716A1 Filter apparatus and method |
| 04/18/1989 | CA1252739A1 Stacked ring filter for liquids |
| 04/13/1989 | DE3732341A1 Attachment connected to an engine housing by way of a pintle |
| 04/12/1989 | EP0311360A2 Cleaning equipment |
| 04/12/1989 | EP0310632A1 Cross-flow filtration device and method of making. |
| 04/11/1989 | US4820425 Liquid sensor for robotic filtration station |
| 04/11/1989 | US4820407 Solids screens |
| 04/11/1989 | US4819722 Metal well screen assembly with plastic end fitting and method of attaching same |
| 04/06/1989 | WO1989002776A1 Filter media for filter systems |
| 04/06/1989 | WO1989002708A1 Process and installation for decanting liquids, in particular raw juices |
| 04/06/1989 | DE3731658A1 Active filter unit for chemical and biological water treatment |
| 04/05/1989 | EP0309743A2 Backwash filter |
| 04/05/1989 | EP0309708A1 Filter for use in a bottling cartridge for a beverage |
| 04/04/1989 | US4818420 Backwash filter |
| 04/04/1989 | US4818415 Method and apparatus for removing liquid from permeable material |
| 04/04/1989 | US4818414 Retaining waste filtrate |
| 04/04/1989 | US4818403 Double cylinder screen |
| 04/04/1989 | US4818402 Self cleaning strainer |
| 04/04/1989 | US4818398 Filter system with readily replaceable filter element |
| 04/04/1989 | US4818396 Device for a filter |
| 03/30/1989 | DE3731864A1 Pharmaceutical module |
| 03/29/1989 | EP0309186A1 Improved helically wound screen and method of making the same |
| 03/29/1989 | EP0309007A1 Method for separating an aqueous liquid and active carbon including adsorbed material |
| 03/29/1989 | CN1031943A Filter of depth layer type |
| 03/28/1989 | US4816155 Juice drainage system |
| 03/28/1989 | US4816154 Liquid filtering apparatus |
| 03/28/1989 | US4816148 Multi-stage straining apparatus |
| 03/28/1989 | CA1251674A1 Apparatus and method for wrapping an external tape support about a filter element assembly |
| 03/23/1989 | WO1988005335A3 Filtering apparatus for contaminated fluids |
| 03/23/1989 | DE3822443A1 Plate filter made of a pleated filter web material |
| 03/23/1989 | DE3739275A1 Device for separating impurities |
| 03/23/1989 | DE3730567A1 Liquid pump |
| 03/22/1989 | EP0308232A2 Filter and test device containing same, with flow-delaying polymer |
| 03/22/1989 | EP0308098A1 Flexible filter bag and method of fabrication |
| 03/21/1989 | US4814186 Polymer filtration apparatus |
| 03/21/1989 | US4814081 Honeycombed filter support disc |
| 03/21/1989 | US4814080 Device for mounting parallel planar filtration sleeves in series for water purification |
| 03/21/1989 | US4814076 Self-cleaning filter for insertion into a pressurized pipe |
| 03/21/1989 | US4814075 Feed box assembly |
| 03/21/1989 | US4814033 Method of making a reinforced filter tube |
| 03/16/1989 | DE3816214A1 Drehsieb Rotary screen |
| 03/16/1989 | DE3739160C1 Container for paint sludge |
| 03/15/1989 | EP0307234A2 Process for producing a filter element |
| 03/15/1989 | EP0183767B1 Tubular trash net for pre-treating sewage |
| 03/14/1989 | US4812236 Foil with micropores on two layer support which has open macropores |
| 03/14/1989 | US4812235 For high viscosity fluids; at high temperature and pressure |
| 03/14/1989 | US4812230 Self-cleaning; cylindrical cartridge has telescoping movement |
| 03/14/1989 | US4811790 Well bore device and method for sand control |
| 03/14/1989 | CA1251169A1 Strain cage for gravity flow system |
| 03/09/1989 | WO1989001966A1 Filter units for biological sample preparation |
| 03/09/1989 | WO1989001816A1 Water clarification system adapted for removing particulate matter of greater than a predetermined size |
| 03/09/1989 | WO1989001814A1 Filtration plant |
| 03/08/1989 | EP0306231A2 Flexible filter element employing filtering sheets formed with bypass openings |
| 03/08/1989 | EP0305898A2 Process for the isolation and purification of cellulose ethers and other derivatives of cellulose |
| 03/08/1989 | EP0305606A1 Back-wash filter assembly |
| 03/08/1989 | EP0305575A1 Filtering apparatus |
| 03/07/1989 | US4810393 Heating, centrifuging, filtration |
| 03/07/1989 | US4810389 Flowing slurry |
| 03/07/1989 | US4810379 Removable pleated paper forms pockets |
| 03/01/1989 | EP0304833A2 Cross-flow type filter system |
| 03/01/1989 | EP0304443A1 Filter construction and method for the formation of a filter construction. |
| 02/28/1989 | US4808303 Produce hydration system |
| 02/23/1989 | WO1989001556A1 Swimming pool filter |
| 02/23/1989 | WO1989001360A1 Mechanism for removing solid particles from a liquid-circulating system |
| 02/23/1989 | WO1989001358A1 Filter candle |
| 02/22/1989 | EP0304207A2 High surface area filter cartridge |
| 02/22/1989 | EP0303937A2 Filter of depth layer type |
| 02/22/1989 | CN2032907U Filter wick with static pollute matter collecting trough |
| 02/21/1989 | US4806258 Straining and stop valve |
| 02/21/1989 | US4806248 Telescopic connectable tubes with fasteners |
| 02/21/1989 | US4806243 Self-cleaning filter and steam condenser inlet water box comprising same |
| 02/21/1989 | US4806242 Self-cleaning filter |
| 02/21/1989 | US4806241 Overflow lint strainer |
| 02/21/1989 | US4806217 Back-flushable filter and pressure-regulator particularly useful therewith |
| 02/21/1989 | US4806135 Bubble trap for phase-separating gas bubbles from flowing liquids |