| Patents for B01D 35 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups; Auxiliary devices for filtration; Filter housing constructions (28,776) |
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| 06/06/1989 | US4836934 Nuclear power plants |
| 06/06/1989 | US4836925 Device for a filter device |
| 06/06/1989 | US4836923 Cartridge and cover assembly for fluid filters |
| 06/01/1989 | WO1989004710A1 Magnetic filter-settler |
| 05/31/1989 | EP0318361A1 Self-cleaning filtration apparatus |
| 05/31/1989 | EP0318079A1 Filter device and filter cartridge therefor |
| 05/30/1989 | US4834885 Seal arrangement for fluid filters |
| 05/30/1989 | US4834876 Filtration assembly having integral heating means for maintaining the metallic material being filtered in the molten state |
| 05/30/1989 | US4834874 Removal of liquid from a liquid-solids mixture |
| 05/30/1989 | US4834177 Unidirectional filter for hydraulic systems |
| 05/30/1989 | US4834136 Pressure relief filter and valve and cryopump utilizing the same |
| 05/23/1989 | US4832850 Method and device for mass transport and separation through selective barriers |
| 05/23/1989 | US4832840 Membrane filter plate having improved bending characteristics of the membrane |
| 05/23/1989 | US4832836 Series filters |
| 05/23/1989 | US4832077 Filtered stop |
| 05/23/1989 | US4831980 Oil cooler assembly with integrated oil filter for internal combustion engine |
| 05/23/1989 | CA1254520A1 Method and apparatus for removing extraneous matter from a cooling water system |
| 05/16/1989 | US4830750 Filter belt arrangement |
| 05/16/1989 | US4830745 Process for removing water and/or other volatile impurities from lubricating oils and device for carrying out the process |
| 05/16/1989 | US4830233 Sluice type apparatus for discharging material batches |
| 05/16/1989 | CA1254312A1 Apparatus for water purification |
| 05/10/1989 | EP0314963A2 Plastic casing |
| 05/10/1989 | EP0314915A2 Filter for the purification of lubricating oil |
| 05/09/1989 | US4828719 Oscillating screen or filter surface |
| 05/09/1989 | US4828717 Device and method for reducing volume of aqueous waste effluents |
| 05/09/1989 | US4828694 Filter with filtration envelope spacing means |
| 05/09/1989 | US4828692 Simplified method and apparatus for purification |
| 05/09/1989 | US4827979 Multi port diverter valve |
| 05/09/1989 | CA1253811A1 Device for extracting the liquid phase of a suspension |
| 05/05/1989 | WO1989003717A1 Device and method for depletion of the leukocyte content of blood and blood components |
| 05/03/1989 | EP0313677A1 Safety lock for a filter housing |
| 05/03/1989 | CN2036858U Filtration and decompression device for water supply |
| 05/02/1989 | US4826598 Hermetically sealed transmission filter |
| 05/02/1989 | US4826592 Magnetic filter apparatus |
| 05/02/1989 | US4826590 Cooking oil filtering system |
| 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 |
| 04/25/1989 | US4824565 Personal, portable, disposable tap water filter |
| 04/20/1989 | WO1989003240A1 Process and plant for clarifying liquids, in particular raw juice |
| 04/19/1989 | EP0311716A1 Filter apparatus and method |
| 04/13/1989 | DE3832309A1 Filtereinheit fuer wasserfiltriereinrichtung, insbesondere fuer ein aquarium Filter unit for wasserfiltriereinrichtung, especially for an aquarium |
| 04/12/1989 | EP0311220A2 Improvements in or relating to the treatment of multi-phase systems |
| 04/12/1989 | CN2035852U Purifier |
| 04/06/1989 | DE3731658A1 Active filter unit for chemical and biological water treatment |
| 04/05/1989 | EP0309743A2 Backwash filter |
| 04/05/1989 | CN1032113A Equipment for detecting dehydrating slurry flow on pressure net band filter |
| 04/04/1989 | US4818415 Method and apparatus for removing liquid from permeable material |
| 04/04/1989 | US4818414 Retaining waste filtrate |
| 04/04/1989 | US4818397 Shut-off valve seal |
| 04/04/1989 | US4818396 Device for a filter |
| 04/04/1989 | US4818385 Filter with high pressure indicator |
| 03/29/1989 | EP0309137A1 Cartridge bypass valve |
| 03/28/1989 | US4815493 Cartridge bypass valve |
| 03/28/1989 | CA1251716A1 Diagnostic-test specimen-preparation vial |
| 03/23/1989 | DE3730567A1 Liquid pump |
| 03/22/1989 | EP0162053B1 Single-ended, spin-on fuel water separator |
| 03/22/1989 | CN2034470U 磁钛溶液过滤机 Magnetic titanium solution filter |
| 03/22/1989 | CN2034469U 新型网式过滤器 The new comb filter |
| 03/22/1989 | CN1031825A Simplified method and apparatus for purification |
| 03/21/1989 | US4814186 Polymer filtration apparatus |
| 03/21/1989 | US4814078 Water filter cartridge |
| 03/21/1989 | US4814076 Self-cleaning filter for insertion into a pressurized pipe |
| 03/15/1989 | EP0183767B1 Tubular trash net for pre-treating sewage |
| 03/15/1989 | CN2034224U Dual-purpose water tap |
| 03/15/1989 | CN1031755A Low-resistance one-way water-purifying gate equipment |
| 03/14/1989 | US4812230 Self-cleaning; cylindrical cartridge has telescoping movement |
| 03/14/1989 | CA1251169A1 Strain cage for gravity flow system |
| 03/09/1989 | WO1989001966A1 Filter units for biological sample preparation |
| 03/09/1989 | DE3741281A1 Diesel heater |
| 03/08/1989 | EP0305898A2 Process for the isolation and purification of cellulose ethers and other derivatives of cellulose |
| 03/08/1989 | EP0305854A2 Heating device for diesel oil or heating oil for an engine or a burner |
| 03/08/1989 | EP0305689A2 Lubricating device for a reciprocating-piston engine |
| 03/08/1989 | EP0305606A1 Back-wash filter assembly |
| 03/08/1989 | CN2033708U Magnetic separating filter |
| 03/07/1989 | US4810389 Flowing slurry |
| 03/07/1989 | US4809791 Removal of rock cuttings while drilling utilizing an automatically adjustable shaker system |
| 03/01/1989 | EP0304833A2 Cross-flow type filter system |
| 03/01/1989 | CN2033286U 污水过滤器 Water filter |
| 02/28/1989 | US4808317 Process for continuous contacting of fluids and solids |
| 02/28/1989 | US4808304 Apparatus for the dewatering of phosphate slimes |
| 02/28/1989 | CA1250545A1 Charging a dispersed phase-laden fluid |
| 02/23/1989 | WO1989001508A1 Process for purifying and regenerating used oils |
| 02/23/1989 | WO1989001360A1 Mechanism for removing solid particles from a liquid-circulating system |
| 02/22/1989 | EP0303835A1 Fuel filter |
| 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 | US4806240 Adapter and cartridge assembly |
| 02/21/1989 | US4806204 Cellulose and carbon fibers; joule effect; fuel supply circuits; nonclogging |
| 02/15/1989 | EP0303240A1 Installation and method to filter a machining fluid in an uninterrupted supplying circuit |
| 02/15/1989 | CN2032495U Multi-functional processor for drinking water |
| 02/14/1989 | US4804481 Helical spring apparatus and process for detaching filter cake |
| 02/14/1989 | US4804478 Method and an arrangement for the treatment and disinfection of swimming and bathing reservoir water using chlorine and ozone |
| 02/14/1989 | US4804468 Self-retaining smooth bore insert |
| 02/14/1989 | US4804467 Water filter assembly |
| 02/14/1989 | US4804466 Fluid filter with internal spacer |
| 02/14/1989 | CA1249914A1 Device for continuous contacting of fluids and solids |
| 02/09/1989 | WO1989000976A1 Simplified method and apparatus for purification |
| 02/09/1989 | WO1989000881A1 Filter |