Patents
Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884)
07/1993
07/27/1993US5230800 Scrim inserted electrostatic fibrous filter web
07/27/1993US5230726 Automobile inflatable air bags
07/27/1993US5230455 Self-supporting filter units
07/23/1993CA2087773A1 Material for filters, especially oil, petrol or diesel filters of motor vehicles
07/22/1993WO1993014265A1 Porous webs
07/22/1993WO1993013849A1 Filter and filter element
07/22/1993DE4208243C1 Dust filter for air conditioning plant - impregnated with sodium carbonate and potassium carbonate to destroy fungi, germs and allergies
07/22/1993CA2127979A1 Porous webs
07/21/1993EP0551832A1 Coating of yarn bundles, process for their manufacturing and textile made thereof
07/21/1993EP0532633A4 Method for producing high solids slurries of clay water products
07/20/1993US5229200 Static dissipative nonwoven textile material
07/20/1993US5229078 Filter for the separation of impurities or contaminants
07/20/1993US5229013 Clay, silica filter media
07/20/1993US5229012 Passing blood through fibrous leukocyte adsorption/filtraation filter having specified pore diameter and critical wetting surface tension
07/20/1993US5228994 Composite microporous membranes
07/20/1993CA1320346C Draining mat with high constant pressure
07/14/1993EP0550950A2 Process and device for separating blood serum and plasma
07/14/1993EP0304443B1 Filter construction and method for the formation of a filter construction
07/14/1993CN1074269A Well screens and screen prepacks
07/08/1993WO1993012867A1 Catalytic filtration device and method
07/08/1993WO1993012862A1 Filter element for filtering fluids
07/07/1993EP0550297A2 Filter for molten metal with perforated plates made from refractory material
07/06/1993US5225276 Filter aid for analytical use and method for preparing the same
07/06/1993US5225014 Process for producing precision cartridge filter
07/01/1993DE4143237A1 Filterelement zum filtern von gasen und/oder fluessigkeiten, insbesondere zum filtern der in den fahrgastraum eines kraftfahrzeuges einstroemenden luft Filter filter element for filtering of gases and / or liquids, in particular for the in the passenger compartment of a motor vehicle incoming air
07/01/1993DE4142292A1 Multilayer filter - contains calcinated diatomite as active filter material
06/1993
06/30/1993EP0549105A1 Forming workpieces and a forming assembly therefor
06/30/1993EP0548287A1 Filter assembly for gas analyser
06/29/1993US5223325 Filter medium
06/29/1993US5223318 Membrane supports having specific pore size, narrow pore size distribution; formed of sintered particles of specific size
06/29/1993US5223155 Discharging of filter cake using water pulses
06/29/1993US5223153 Iron hydroxide removal method
06/29/1993US5223139 Fleece-like structure
06/29/1993US5223138 Reinforced ceramic filter candle and method of making same
06/29/1993CA1319626C Flexible filter element employing filtering sheets formed with bypass openings
06/28/1993WO1993012920A1 Biaxially oriented high-molecular polyethylene film and production thereof, and surface-modified, biaxially oriented high-molecular polyethylene film and production thereof
06/25/1993WO1993012861A1 Filter medium and filter which use animal fibers
06/25/1993CA2104588A1 Filter medium and filter which use animal fibers
06/24/1993WO1993012281A1 Static dissipative nonwoven textile material
06/24/1993WO1993011862A1 Micromechanical filter and method for the manufacture thereof
06/24/1993WO1993011849A1 A filter and filtration method
06/24/1993DE4141580A1 Exhaust gas particle filter esp. for diesel exhaust - has at least two filter layers of different ceramics between the clean and crude gas sides, the first filter being coarser than the second, giving high sepn. and low pressure loss
06/23/1993EP0547865A2 Well screen with prepacked screen element
06/23/1993EP0547512A1 Crystallizer filter
06/22/1993US5221484 Useful for catalyzing gas phase reactions, such as, oxidation of nitrogen oxides, oxidation of sulfur dioxide and organic vapors
06/22/1993CA1319327C Purification of liquids with treated polyester fibers
06/17/1993CA2085437A1 Well screens and screen prepacks
06/17/1993CA2057750A1 Process for producing a high strength artificial (cast) stone with high permeability and filter effect
06/16/1993EP0545970A1 Method of manufacturing filter bags and a filter bag.
06/16/1993CN1021201C Filter for separation of solid from hot gas or liquid
06/16/1993CN1021200C Filter core for whole flow depth purifier of lubricating oil
06/15/1993US5219469 Filter medium having flock islands of fibers anchored by calotte shaped adhesive deposits
06/15/1993US5218832 Separation method and apparatus for a liquid and gas mixture
06/15/1993CA1319074C Nonwoven fibrous web for tobacco filter
06/14/1993CA2082184A1 Crystallizer filter
06/10/1993WO1993011221A1 Device and process for isolating and purifying nucleic acids
06/10/1993WO1993011218A1 Method and device for the isolation of cell components, such as nucleic acids, from natural sources
06/10/1993WO1993011087A1 Structure for a filter or a heat exchanger and a method for making the structure
06/08/1993US5217515 Abatement of tinkles in wire mesh
06/03/1993DE4139664A1 Vorrichtung und verfahren zur isolierung und reinigung von nukleinsaeuren Apparatus and method for isolation and purification of nucleic acids
06/02/1993EP0444073B1 Easily defibered web-shaped paper product
06/02/1993CN1021018C Filter apparatus for filtering liquid
06/01/1993US5215661 Multi-layer filter cartridge
06/01/1993CA1318608C Filter element and assembly
05/1993
05/26/1993EP0398919B1 Filter apparatus for filtering a liquid
05/26/1993EP0267286B1 Filter medium for selectively removing leucocytes
05/26/1993CN1072396A Purifying method for removing hexavalence chromium in drinking water
05/26/1993CN1072351A Polytetrafluoroethylene porous film prepn. and use thereof
05/25/1993US5213965 Solid-phase precipitation assay device
05/25/1993US5213964 High-density lipoprotein solid-base precipitation assay method
05/25/1993US5213882 Static dissipative nonwoven textile material
05/25/1993US5213687 Apparatus for filtering mineral slurries
05/19/1993EP0542655A1 Device for the separation and determination of agglutinated erythrocytes in a single step
05/19/1993EP0542396A2 Self-supporting filter unit
05/19/1993EP0394384B1 Device for containing and holding in position specific quantities of bulk material
05/19/1993DE4137627A1 High temp.-resistant, inert textile sheet for gas filter - made from temp.-resistant filament, esp. glass fibre, by converting into thread, dip-coating with temp. resistant plastic e.g. PTFE and weaving
05/19/1993CN1072102A Filter bag for hot gases
05/18/1993CA1318079C Ceramic foam
05/16/1993WO1993009862A1 Pleated poly(tetra-fluoro ethylene) filter medium and support
05/16/1993CA2108901A1 Pleated poly (tetra-fluoro ethylene) filter medium and support
05/13/1993WO1993008896A1 Filter bag for hot gases
05/13/1993DE4227132A1 Resin mixt. contg. phenolic and epoxy] resins
05/12/1993EP0541356A1 A filtering material and a method of producing the same
05/12/1993EP0541331A1 Structure of ceramic fibrous material
05/12/1993EP0540838A1 Binder composition based on epoxy-phenol resins
05/11/1993US5210629 Method of making liquid crystal display elements using ceramic filter to determine spacer size
05/11/1993CA1317536C Breathable non-linting laminate
05/05/1993EP0539671A1 Process for the production of a plastic preform with pores
05/05/1993EP0539495A1 Solid-phase precipitation assay device and method
05/05/1993CN1071600A Particle-loaded blown microfiber article for separations and purifications
05/05/1993CN1020490C Compounding method of fine filter paper board raw material
05/05/1993CN1020413C Method for producing plate-type filter cloth
05/04/1993US5208190 Microporous alumina ceramic membranes
05/04/1993US5207910 Combined filtration and fixation of heavy metals
05/04/1993US5207812 Filter cartridge
05/04/1993CA1317239C Molded panel air filter
05/01/1993CA2054508A1 Filter automatic cleansing water cleaner
04/1993
04/27/1993US5206206 Method of pre-treating peat for use in biofilters for wastewater treatment and use thereof
04/27/1993US5205938 High dirt capacity, resistant to aromatic fluids
04/27/1993CA1316839C Hot filter media