Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 39 - Filtering material for liquid or gaseous fluids
Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884)
10/1990
10/24/1990CN2064261U Mini stainless steel draft-filter-felt
10/24/1990CN1046291A Filter apparatus for filtering liquid
10/23/1990US4965101 Ceramic foam for filters for cleaning exhaust gases of diesel engines
10/23/1990US4964993 Multiple-use molten metal filters
10/23/1990US4964989 Membranes with low protein adsorbability
10/23/1990CA1275383C Panel air filter
10/18/1990DE4010526A1 Flexible fleece-like filter material
10/17/1990EP0392903A1 Filter cartridge obtained by the wet process for filtering gases, in particular hot and/or radioactive and/or corrosive gases
10/17/1990EP0392377A2 Method and device for the separation of plasma or serum from whole blood
10/10/1990EP0391726A2 Improved filtration medium and face mask containing the same
10/10/1990EP0391725A1 Method for making an electrostatically charged face mask
10/10/1990EP0391660A2 Filter laminates
10/10/1990EP0391321A2 Ceramic filter for a dust-containing gas and method for its production
10/10/1990CN2063439U 复合板式过滤布 Composite panel filter cloth
10/10/1990CN1045928A Process for purification of waste gases emitted from melting furnace
10/09/1990US4961974 Fabrics/non-woven/, compression, powders, bonding, bulking, heat treatment, stiffness
10/08/1990WO1990011814A1 Cationic charge modified filter media and use thereof
10/08/1990CA2049949A1 Cationic charge modified filter media and use thereof
10/07/1990CA2014053A1 Electrostatically charged face mask and method for the same
10/07/1990CA2014052A1 Filtration medium and face mask containing the same
10/03/1990EP0390755A2 Composite layered geotextile having low deformability and high filtering and drainage capability
10/03/1990EP0390321A1 Porous sintered metal structure with a cured oxide layer
10/03/1990EP0389561A1 Breathable non-linting laminate.
10/03/1990CN1045709A Multi-passageway eddy flow packing elements
10/02/1990US4960449 Filters for diesel exhaust gases; pollution control
10/02/1990CA1274856A1 Process for producing open-pore sintered glass having a large open pore volume, particularly suitable as filters for liquids and gases at high flow rates
09/1990
09/28/1990CA2013264A1 Process for the purification of waste gases emitted from a melting furnace
09/25/1990US4959150 Filter with hydroxyacrylic ester coating
09/20/1990WO1990010487A1 Flexible tubular filter medium
09/19/1990EP0388026A1 Aluminide structures
09/19/1990EP0388010A1 Filters for light metals
09/19/1990EP0387394A1 Process for manufacturing the body of a filter or a catalyst
09/19/1990CN2062249U Diatomaceous earth filter
09/19/1990CN1045358A Method for producing plate-type filter cloth
09/18/1990US4957543 Nickel carbonyl decomposition on open-cell decomposable foam structure, sintering
09/18/1990US4957522 Combination of a filter and a material permeable to gases but impermeable to liquids
09/18/1990CA1274189A1 Filtering screens and methods of production thereof
09/12/1990EP0386806A2 Device for the separation of liquid ashes
09/11/1990US4955995 Range hood filter pad
09/10/1990WO1990010497A1 Multiple vortex-mixing insert
09/07/1990WO1990009837A1 Laminated filters
09/07/1990WO1990009836A1 Improvements in filtration
09/07/1990CA2048621A1 Improvements in filtration
09/04/1990US4954268 Process for removing cellulose ethers from a cellulose ether suspension
09/04/1990CA1273465A1 Method of manufacturing molded articles
09/03/1990WO1990009813A1 A scented air freshening device and method for making the same
09/03/1990CA2032142A1 Scented air freshening device and method for making the same
08/1990
08/29/1990EP0383788A1 Method and apparatus for filtering contaminants.
08/23/1990DE3905164A1 Sterilising filter for drinking water and liquid foods
08/23/1990CA2009272A1 Filters for light metals
08/22/1990EP0383236A1 Filter, especially for a vehicle
08/22/1990CN1044768A Sintered coating for porous metallic filter surfaces
08/21/1990US4950529 Extra fine fibers; heat, fire and chemical resistance
08/16/1990EP0381812A1 Sintered coating for porous metallic filter surfaces
08/16/1990EP0381666A1 Filter cartridge.
08/15/1990CN1009161B Forming method and equipment of filtering elements
08/14/1990US4948639 Vacuum cleaner bag
08/14/1990US4948549 Process for producing soot filter elements
08/14/1990US4948515 Filter for liquid and method of filtering liquid
08/09/1990WO1990006846A3 Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them
08/07/1990US4946603 Filtration
08/07/1990US4946592 Membrane filter
08/07/1990US4946487 Used to clean particle-laden gases
08/07/1990CA1272451A1 Process for scrubbing exhaust gases from diesel engines and filter cartridge for carrying out the process
08/03/1990WO1990008801A1 Highly air permeable expanded polytetrafluoroethylene membranes and process for making them
08/01/1990CN1044290A Crude oil desalting and dewatering by filteration
08/01/1990CN1009014B Method of manufacture of formed article
07/1990
07/31/1990US4944996 Porous mineral membrane sintered to carbon composite support; mechanical strength, bursting resistance, porosity
07/31/1990US4944854 Using corona discharges on packed, tightly wrapped synthetic yarn
07/25/1990EP0379032A1 Waste gas filter
07/25/1990EP0378684A1 Leucocyte-separating process
07/25/1990EP0258426B1 Process for producing an additive for lubricants and for aqueous heating agents and fuels
07/20/1990CA2008186A1 Exhaust gas filter
07/17/1990US4942091 Chemical, heat resistant fibers
07/11/1990EP0377420A1 Air filter
07/11/1990CN1008729B Bubble-like ceramic filtering device for filtering liqud metal and its preparation process
07/11/1990CN1008692B Filter element and its production method
07/11/1990CA2007450A1 Ceramic filter for the filtering of molten metals
07/10/1990US4940476 Soot filter
07/05/1990DE3844199A1 Filter element for separating off solid particles from gaseous and/or liquid media
07/04/1990EP0376854A1 Process and device for the manufacture of a cartridge filter
07/03/1990US4938787 Filter device and filter apparatus comprising such filter devices
07/03/1990US4938786 Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus
06/1990
06/30/1990CA2006925A1 Process and means for manufacturing a filter cartridge
06/28/1990WO1990006846A2 Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them
06/28/1990WO1990006804A1 Filtering apparatus
06/27/1990EP0375234A1 Nonwoven filter material
06/27/1990EP0236479B1 Composite having improved transverse structural integrity and flexibility for use in high temperature environments and method of making the same
06/26/1990US4936998 Filter medium for selectively removing leucocytes
06/26/1990US4936993 Apparatus for separation of blood components
06/21/1990DE3926555A1 Cordierite ceramic filter - esp. for sterile gas filtration, formed from spray-dried granulate
06/21/1990DE3926411A1 Ceramic filter for liquids - obtd. by sintering porous sprayed granular material made from aluminium oxide, kaolin and talc
06/20/1990EP0373215A1 Porous inorganic membrane with reactive inorganic binder, and method of forming same.
06/20/1990EP0373210A1 Process and installation for dry separation of noxious substances from flue gases
06/19/1990US4935139 Composite membranes
06/14/1990WO1990006388A1 Metallic fiber non-woven fabric and its production method
06/13/1990EP0372351A1 Process for the manufacture of a ceramic filter unit
06/13/1990CN2058109U 氧气过滤器 Oxygen Filter
06/12/1990US4933092 Matrix of hydrophilic sintered porous material
06/12/1990US4932112 Sieve plate and process for making it
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