| 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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| 11/10/1988 | DE3813264A1 Process and apparatus for purifying waste waters arising in dental treatments |
| 11/10/1988 | DE3714660A1 Filter fitting |
| 11/09/1988 | EP0289740A1 Fluid flow spacing element |
| 11/09/1988 | CN88102418A Cylindrical elcment for filtering and separation |
| 11/08/1988 | US4783318 Apparatus for environmental leaching testing |
| 11/08/1988 | US4783271 Temperature responsive bypass filter assembly |
| 11/08/1988 | US4783266 Filter for removing particles from a fluid, and method therefore |
| 11/08/1988 | US4783262 Separator for cell type filter element |
| 11/08/1988 | US4783260 Folded overlapping net forms flat bag; automobiles |
| 11/03/1988 | WO1988008475A1 Universally-adaptable pool water filter structures |
| 11/03/1988 | WO1988008324A1 Quick-change filter cartridge and head therefor |
| 11/03/1988 | DE3812927A1 Cylindrical filter and separation element |
| 11/03/1988 | DE3805299A1 Integral filter for separating off fluid constituents and housing therefor |
| 11/02/1988 | EP0289444A2 Filter apparatus |
| 11/02/1988 | EP0289020A2 Method and apparatus for treating fiber suspension |
| 11/02/1988 | EP0288817A2 Dynamic filter apparatus and method |
| 11/01/1988 | US4781831 Cross-flow filtration device with filtrate flow conduits and method of forming same |
| 11/01/1988 | US4781825 Filter with self-actuating rotating backwash selector |
| 11/01/1988 | US4781823 Hopper with screen arranged rotatably about shaft to divide; water, oils and fats |
| 10/27/1988 | DE3811641A1 Screen mat consisting of fabric |
| 10/26/1988 | EP0288105A2 Machine for continuously separating solid and semisolid parts from liquid, in the purification of civil and industrial effluents |
| 10/26/1988 | EP0287910A2 Filter, especially a coffee filter, and method for making the same |
| 10/26/1988 | EP0160643B1 Oil filter assembly having a removable filter member |
| 10/25/1988 | US4780213 Filter media and method of filtration |
| 10/25/1988 | US4780204 Fluid collector with upraised ridges |
| 10/25/1988 | US4780203 Liquid separators |
| 10/25/1988 | US4780202 Filtering unit using a diaphragm between a pair of opposite grooved backing surfaces |
| 10/25/1988 | US4780199 Reciprocal carriage to move rake vertically; waste water treatment |
| 10/25/1988 | US4780197 Chlorination module for cartridge filter unit |
| 10/25/1988 | US4780151 Fluid filter cleaning method |
| 10/19/1988 | EP0287408A1 Filter screens |
| 10/19/1988 | EP0287267A2 Cylindrical Screen Plates |
| 10/13/1988 | DE3810696A1 Filter device and stabiliser device |
| 10/13/1988 | DE3711735C1 Filtration apparatus for filtering liquids, in particular by reduced pressure |
| 10/13/1988 | DE3711734C1 Filtration apparatus for the filtration of liquids, in particular by means of reduced pressure or overpressure |
| 10/13/1988 | DE3711114A1 Service water backwash filter |
| 10/12/1988 | EP0286535A1 Screens for paperstock cleaners |
| 10/11/1988 | US4776962 Cleaning fibrous filter mass by expansion and compaction during backwashing |
| 10/11/1988 | US4776958 A diatomaceous earth caking filter for swimming pools |
| 10/11/1988 | US4776957 Rotating element for a screening apparatus with a contour surface |
| 10/11/1988 | CA1242979A1 Pressure filter (hpc clarifil) |
| 10/06/1988 | WO1988007501A1 Apparatus for draining of sludge |
| 10/06/1988 | WO1988007401A1 Self-operated drum filter and method for the filtration of water |
| 10/06/1988 | WO1988007398A1 Cross-flow filtration device and method of making |
| 10/05/1988 | EP0285416A1 Fuel filter assembly with heater |
| 10/05/1988 | EP0285031A2 Improved separator for cell type fiter cartridges |
| 10/05/1988 | EP0284729A1 Filter unit |
| 10/05/1988 | EP0284620A1 Device for detection, analysis, identification and characterization by filtration and immunofiltration. |
| 10/04/1988 | US4775469 Rotating cam releasably joins basket and retainer |
| 09/28/1988 | EP0284404A2 Filter disc |
| 09/27/1988 | US4774058 Apparatus for, and methods of, operating upon a fluid |
| 09/27/1988 | US4774010 Tank filter with conveyor flight driven filter media belt |
| 09/27/1988 | US4774008 Filter cakes, conveying |
| 09/27/1988 | US4774002 Filtration, cleaning, cementation |
| 09/27/1988 | US4774000 Superimposed porous membranes with supports; high precision |
| 09/27/1988 | US4773999 Layers of porous fibrous tissue adjacent to seal; filters oil or water based liquids |
| 09/27/1988 | US4773990 Axial flow filter having entry and exit filtration stages and flow distribution means |
| 09/27/1988 | CA1242396A1 Tubular trash net |
| 09/22/1988 | DE3708079A1 Process and apparatus for scum treatment |
| 09/21/1988 | EP0283177A2 Filtering device |
| 09/20/1988 | US4772443 Thermally formed filter |
| 09/20/1988 | US4771829 Well liner with selective isolation screen |
| 09/20/1988 | CA1242153A1 Single cartridge filter |
| 09/14/1988 | EP0282045A1 Tapered, spirally wound filter cartridge and method of making the same |
| 09/13/1988 | US4770793 Filter cake |
| 09/13/1988 | US4770772 Vertical rotating drum with retaining filter, heating jacket and outlet; rotatable to inclined or horizontal positions |
| 09/13/1988 | US4770771 Ink system with self-washing filter |
| 09/13/1988 | US4770336 Well screen centralizer and method for constructing centralizer and for joining of well screens |
| 09/07/1988 | WO1988006480A1 Filter construction and method for the formation of a filter construction |
| 09/07/1988 | EP0281328A1 Fluid filtering systems |
| 09/07/1988 | EP0281320A2 Method for filtering a fluid |
| 09/06/1988 | US4769136 Filter unit with linked valve actuators |
| 09/06/1988 | US4769096 Adhesive latex, thermoplastic resin, ungelatinized starch granules composition |
| 09/06/1988 | CA1241775A1 Mobile fluid purification unit |
| 09/01/1988 | DE3805361A1 Integral filter for fluids made of a plurality of filter elements stacked one inside the other having different retention capacities and housing therefor |
| 08/31/1988 | EP0280620A1 Filtration apparatus and process for cleaning said apparatus |
| 08/31/1988 | EP0280063A1 Process and apparatus for improving the rest filtration in a filter |
| 08/31/1988 | EP0279975A1 Rise-rate control of pulsed-bed granular medium filters |
| 08/31/1988 | EP0279900A1 Oil filter |
| 08/31/1988 | CN88101118A Filter assembly for filtering contaminated liquids |
| 08/30/1988 | US4767539 Pressurized gas |
| 08/30/1988 | US4767534 Plate filter for filtering liquids |
| 08/30/1988 | US4767530 Quick change oil filter system |
| 08/30/1988 | US4767394 Method for making axial-flow filters and apparatus therefor |
| 08/30/1988 | CA1241208A1 Refillable filter-drier |
| 08/25/1988 | WO1988006056A1 Filtering candle for a deposit filter |
| 08/25/1988 | DE3704475A1 Filterkerze fuer ein anschwemmfilter Filter cartridge for a precoat |
| 08/23/1988 | US4765906 Filter support having two plies connected together at parallel; flexible |
| 08/23/1988 | US4765893 Coiled membrane filter cartridge |
| 08/23/1988 | EP0276253A4 Pulse jet fabric filter. |
| 08/17/1988 | EP0278260A2 Screening apparatus |
| 08/16/1988 | US4764288 Method and system for cleansing a filter bed |
| 08/16/1988 | US4764277 Pulp slurry separator with parallel slots; scraper blade to prevent clogging |
| 08/11/1988 | DE3702489A1 Filter apparatus |
| 08/10/1988 | EP0277660A2 Filtration method and apparatus |
| 08/10/1988 | EP0120920B1 Filter assembly for a spray booth |
| 08/09/1988 | US4762624 Apparatus and method for filtration and concentration of suspension |
| 08/09/1988 | US4762622 Apparatus and process for separating solid particles from a liquid suspension and/or for the purification or leaching of solid particles |
| 08/09/1988 | US4762615 Movable cleaning nozzle; eccentric flushing; pressure plate loosens or tightens disc stack |
| 08/09/1988 | US4762610 Molded synthetic plastic panel for high liquid flow; efficient ore washing |