| 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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| 01/15/1991 | US4985142 Quick release filter by-pass valve |
| 01/10/1991 | WO1991000135A1 Membrane filtration apparatus |
| 01/09/1991 | EP0407255A1 Filter for the automatic purification of liquid circuits |
| 01/09/1991 | EP0406412A1 Magnetic filter-settler |
| 01/09/1991 | EP0370004A4 Filtrate evacuation system |
| 01/09/1991 | EP0179135B1 Separating a component which forms a dispersion in, or which is dissolved in, continuous liquid |
| 01/08/1991 | US4983290 Slit-tube filter |
| 01/02/1991 | EP0405643A2 Membrane press with several doors |
| 01/02/1991 | EP0405642A2 Membrane press with large drainage surface |
| 01/02/1991 | EP0405447A2 Fuel filter |
| 01/02/1991 | EP0405049A1 Improved interlocked remote oil filter and drain |
| 01/02/1991 | CN1048167A On-line filter capable of cleaning tube |
| 12/27/1990 | WO1990015740A2 Collapsible filter for a fluid power apparatus |
| 12/27/1990 | EP0404573A2 Water dispenser |
| 12/27/1990 | EP0404160A1 Centrifugal separator for coagulable liquid, particularly Diesel fuel |
| 12/27/1990 | EP0403679A1 Multi-well filtration test apparatus |
| 12/27/1990 | CA1278267C Oil refiner with atomizing nozzle |
| 12/25/1990 | US4980073 Valve stem for a filter device |
| 12/22/1990 | CA2019706A1 Filter and apparatus using filter |
| 12/20/1990 | DE3919652A1 Safety unit for multi-element liq. fuel filter - only allows casing to be closed when all elements are correctly installed and/or positioned |
| 12/19/1990 | EP0402559A2 Diverter-valve |
| 12/13/1990 | WO1990014884A1 Device for carrying out physico-chemical processes |
| 12/12/1990 | EP0401633A2 Backwashable filter mounting |
| 12/12/1990 | EP0401519A1 Method for electrochemical treatment of porous building materials, particularly for drying and re-alkalization |
| 12/12/1990 | EP0401329A1 Oil filter for internal combustion engines. |
| 12/12/1990 | CN1010747B Model of filtering chamber with floating filter medium |
| 12/11/1990 | US4976854 Oil filter II |
| 12/11/1990 | US4976852 Fuel filter |
| 12/05/1990 | EP0400223A1 Filter for diesel fuel, provided with self-adjusting heating means |
| 12/05/1990 | EP0400170A1 Method of manufacturing a filter for liquid fuels |
| 12/05/1990 | CN2066764U Water filter structure of mechanical (electric) well |
| 12/04/1990 | US4975206 Connecting drains to a prefilter connected to a second filter connected to vat inlets for circulation |
| 12/04/1990 | US4975185 Portable water purification system |
| 12/04/1990 | US4975184 Horizontal removable pump for filtration systems |
| 12/04/1990 | US4975182 Waterflow differential electrical charging process for ores |
| 12/04/1990 | US4974570 Fuel supply module |
| 11/29/1990 | WO1990014145A1 Filter-dryer |
| 11/29/1990 | DE3915958A1 Appts. for filtering liquids - by flowing upwards through moving particulate filter bed, then re-directed to parallel filter when certain differential pressure is reached |
| 11/28/1990 | EP0399639A2 Filter assembly |
| 11/28/1990 | EP0399539A2 Liquid filtering vessel |
| 11/28/1990 | EP0398968A1 Water purification system |
| 11/28/1990 | CN2066349U On-line filter for cleaning pipe |
| 11/28/1990 | CN2066348U Automatic cleaning device for filter |
| 11/28/1990 | CN2066347U On-line water-coal-slurry filter |
| 11/27/1990 | US4973405 Floating suction head assembly |
| 11/27/1990 | US4973402 Flow restrictor and strainer assembly for a toilet tank fill valve and the like |
| 11/27/1990 | CA1276761C Bicomponent ceramic fibers |
| 11/23/1990 | CA2008809A1 Filter assembly |
| 11/22/1990 | DE3916162A1 By=pass system supplying oil and water emulsion - is for mining machine and is actuated by manual opening of stop valve |
| 11/21/1990 | CN2065943U Self-washing water strainer |
| 11/20/1990 | US4971704 In internal combustion engines |
| 11/20/1990 | CA1276567C Fluid filter with internal spacer |
| 11/16/1990 | WO1990014144A1 Laboratory filtration apparatus |
| 11/16/1990 | CA2057925A1 Laboratory filtration apparatus |
| 11/15/1990 | WO1990013346A1 Liquid filter with bypass passage |
| 11/14/1990 | EP0397522A2 Corrosive chemical filtration unit, assembly and system |
| 11/14/1990 | EP0396928A2 Portable water purification system |
| 11/14/1990 | EP0396601A1 Filtration assembly comprising a pump |
| 11/08/1990 | CA2016176A1 Portable water purification system |
| 11/07/1990 | EP0396385A2 A friction welding process and a filter formed thereby |
| 11/07/1990 | EP0396008A2 Vacuum pump with suction filter |
| 11/07/1990 | CN2065093U 自清洗净水器 Self-cleaning water filter |
| 11/06/1990 | WO1990013739A1 Fuel supply module |
| 11/06/1990 | US4968440 Coupling element for a filter device |
| 11/01/1990 | WO1990012635A1 Attachment for a separator |
| 10/31/1990 | EP0394585A2 Oil filter |
| 10/31/1990 | EP0394532A1 Filtration process and apparatus for liquid media |
| 10/31/1990 | CN2064849U Multifunctional single pass valve |
| 10/31/1990 | CN1046435A Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 10/30/1990 | US4966702 Multiple-disc type filters |
| 10/30/1990 | US4966522 In-tank type fuel pump |
| 10/30/1990 | US4965955 Capture apparatus for marine animals |
| 10/24/1990 | EP0393393A1 Filter housing for a by-pass oilfilter for fine-filtering in an oilfilter installation in internal combustion engines |
| 10/24/1990 | EP0393277A2 Filter assembly |
| 10/23/1990 | US4964983 Reservoir |
| 10/19/1990 | CA2014443A1 Portable gravity operated filter |
| 10/17/1990 | EP0392726A2 Filter device |
| 10/16/1990 | US4963271 Pressurization of a mixture of cellulose, cellulose ethers, or cellulose derivatives through a candle filter |
| 10/11/1990 | DE4002247A1 Anschlusskopplung fuer oelfilter an kraft- oder arbeitsmaschinen Connection coupling for OIL in force or working machines |
| 10/11/1990 | DE3914938C1 Fuel filter - comprising bag-shaped liq. permeable fabric structure with support member on inside |
| 10/10/1990 | CN2063438U Filter for purifying water |
| 10/10/1990 | CN2063437U Y型过滤器 Y Strainer |
| 10/09/1990 | US4961850 In-tank fuel filter |
| 10/09/1990 | US4961847 Suction strainer |
| 10/09/1990 | US4961846 Collapsible filter for a fluid power apparatus |
| 10/09/1990 | US4961845 Apparatus and method for filtering particulate matter from dielectric fluids |
| 10/09/1990 | CA1274976A1 Cutting oil filter apparatus |
| 10/06/1990 | WO1990011681A1 Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 10/06/1990 | CA2050683A1 Drip irrigation pipe with embodied continuous conduit for pressure reduction and method of producing same |
| 10/04/1990 | WO1990011115A1 Fuel filter coupling |
| 10/03/1990 | EP0390742A1 Arrangement and method for the filtration of molten metals |
| 10/02/1990 | US4960510 Screening apparatus having a screen grid with a plurality of exchangeable screen elements |
| 09/30/1990 | CA2012828A1 Molten metal filtration system and process |
| 09/27/1990 | DE3909402A1 Filter for gaseous media |
| 09/26/1990 | CN2062651U Domestic water filter |
| 09/25/1990 | US4959146 Remotely operated submersible underwater suction apparatus |
| 09/25/1990 | US4959144 Cooking oil filtration device having locking means and peripheral channel means |
| 09/25/1990 | US4959142 Water treating apparatus |
| 09/25/1990 | US4959141 Fuel filter with positive water shutoff |
| 09/20/1990 | WO1990010490A1 Filter for continuous filtration |