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)
10/1991
10/23/1991EP0453156A1 Reinforced sleeve assembly
10/23/1991EP0452654A2 Installation for purifying a metal melting bath with ceramic filter
10/23/1991EP0276270B1 Method for fabricating moulds made of porous silicone nitride for pressure casting
10/23/1991CN2087092U Air dust filter with glass fibre lining
10/22/1991US5059366 Method of making a membrane filter
10/22/1991US5059320 Locking structure of wire rod for filter element
10/22/1991US5059256 Method of manufacturing filters by laser treatment and device therefor
10/16/1991EP0451755A1 Composite inorganic porous semipermeable membrane and process for its preparation
10/15/1991US5057227 Usin permeable barrier containing peat
10/10/1991DE4019114A1 Filter for selective leucocyte removal from blood etc. - has packing material of plant cell walls, not altering concn., function etc. of erythrocytes
10/09/1991EP0450899A2 Method of producing porous ceramic filter, using cordierite composition including talc and silica powders
10/09/1991EP0450897A2 Heat-resistant metal monolith and manufacturing method therefor
10/09/1991EP0450894A1 Porous PTFE structures
10/09/1991EP0449873A1 Filtering apparatus
10/09/1991CN2086162U Fibre filter for water-purification device
10/08/1991US5055348 Rigidity; impregnation of skin into core upon sintering
10/02/1991EP0448876A2 Filter cartridge
10/02/1991EP0448714A1 Process for producing a fabric having overlapping strips
10/01/1991USH971 Regidized porous material and method
10/01/1991US5053066 Nonwoven filter and method of manufacture
09/1991
09/30/1991CA2036639A1 Filter cartridge
09/26/1991DE4009308A1 Recycling scrap polymers - by filtering soln. of the polymer through sand to remove insol. impurities
09/26/1991DE4009249A1 Filter medium for purificn. of effluent waters etc.
09/25/1991EP0448217A2 Fluid filter for an automated analyzer and filter method
09/25/1991CN1054735A Manufacturing method of high-strength plate-type filter fabric
09/25/1991CN1054725A Anti-corrosive and high-strength fine filtering material and manufacturing method and usage thereof
09/24/1991US5051159 Melting a polymer, spinning fibers and putting in a binder and charging
09/24/1991US5051118 Filtration of gases charged with paint drops
09/24/1991CA1289315C Refractory fiber spacial structure and manufacturing method thereof
09/23/1991WO1991014657A1 Process and installation for purifying waste water
09/23/1991CA2077685A1 Process and installation for purifying waste water
09/20/1991WO1991014503A1 Filter
09/19/1991WO1991013714A1 Process for manufacturing metallic or ceramic materials
09/19/1991WO1991012062A3 Filter
09/19/1991DE4100994A1 Net-like structure for e.g. filtering casting metal - is woven from heat-resistant e.g. glass-fibre strands covered by dissipative film
09/19/1991DE4033227A1 Metallic or ceramic article prodn. - by moulding or casting film-forming material contg. metals or ceramic raw materials
09/18/1991EP0447166A2 Process for producing an electret, a film electret, and an electret filter
09/18/1991EP0446730A1 Monoclonal antibodies against complexed and non complexed complexing agent for the elimination of heavy metals from water solutions and for analysis
09/18/1991EP0446471A1 Process for making a microfiltration, ultrafiltration, pervaporation or reverse osmosis membrane for suspensions, emulsions or gas separation
09/18/1991EP0446389A1 Multi-layer filter cartridge
09/17/1991US5049324 Insulation
09/17/1991US5049170 Filter assembly for gas analyzer
09/17/1991CA1288917C Fibers and filters containing said fibers
09/13/1991CA2037942A1 Process for producing an electret, a film electret, and an electret filter
09/04/1991EP0445067A2 Porous ceramic article
09/03/1991US5045511 Ceramic bodies formed from yttria stabilized zirconia-alumina
09/03/1991US5045111 Filtration of molten ferrous metal
09/03/1991US5045094 Separators
08/1991
08/28/1991EP0443254A1 Electrostatic particle filtration
08/27/1991CA2036558A1 Ceramic bodies formed from yttria stabilized zirconia-alumina
08/27/1991CA1288057C Cross flow microfilter
08/21/1991EP0442410A1 Membrane device for filtration, separation or catalytic reaction
08/20/1991CA1287719C Method of manufacturing molded articles
08/13/1991US5039413 Spiral wrapped fluid treatment element
08/13/1991US5039340 Ceramic foam and a process for forming the same
08/13/1991US5039321 Apparatus for preventing clouding of a semiconductor wafer
08/13/1991US5039296 Apparatus for producing pressings provided with channels from powdery moulding compound, especially ceramic molding compound(short title: honeycomb)
08/13/1991US5038775 Plastic scrim
08/10/1991WO1991012062A2 Filter
08/07/1991CN1053598A Method and solid material body for purification of fluids such as water, aqueous fluids and liquid fuels
08/06/1991US5037455 Air filter
07/1991
07/31/1991EP0177521B1 Filter element for separating solid material particles from gas or liquid media
07/31/1991CN1053464A Compounding method of fine filter paper board raw material
07/30/1991US5035240 Prefilter On Respirators
07/25/1991WO1991010496A1 Catalytic reactor for gas phase reactions
07/25/1991DE4001831A1 Activated charcoal filter - comprising three=dimensional matrix contg. activated charcoal pellets in pref. housing, useful motor vehicles
07/24/1991WO1991011247A1 Filter material for motor vehicles
07/24/1991EP0437685A1 Soot filter
07/24/1991CA2049978A1 Filter material for motor vehicles
07/23/1991US5034176 Dissolving one polymer while the other remains insoluble
07/17/1991CN1053046A Separation method and separating agent
07/16/1991US5032281 Separating membrane and separation method
07/11/1991WO1991005735A3 Active carbon
07/10/1991EP0436372A2 Thermoplastic materials and article made therefrom
07/09/1991US5030482 Filter gasketing
07/09/1991US5030350 Filter medium for cake-forming filtration processes
07/09/1991US5030263 Impregnated with heat curable phenolic resin
07/03/1991EP0435777A1 Cartridge device for gas filtration
07/03/1991EP0435298A2 Device and method for blood separation
07/03/1991EP0435001A2 Laminat
07/03/1991CN1052605A Filter comprising material obtained by freeze drying, method of preparation and use especially in pharmacy threof
07/03/1991CN1013025B Method of making filter body formed of cellulose-spanbond nonwoven cloth
07/02/1991US5028465 Hydroentangled composite filter element
07/02/1991US5028453 Method for reducing fouling
07/02/1991US5028330 Filter & process for manufacturing filters using material cured by ultraviolet radiation for end caps
07/02/1991US5028036 Filter for molten ferrous metal
07/02/1991US5028008 Small-sized fluid treatment element
06/1991
06/30/1991CA2033395A1 Cartridge device for gas filtration
06/29/1991CA2032928A1 Device and method for blood separation
06/27/1991WO1991008829A1 New filter media for use in surgical and clean room masks
06/26/1991EP0434668A1 A membrane support means
06/26/1991EP0433661A2 Polymeric microfiber filter medium
06/26/1991EP0433582A1 Preparation of ceramic honeycomb structure having selectively sealed channels
06/26/1991EP0433387A1 Filtration apparatus and method
06/19/1991EP0432958A1 A method of making a seamless screen cylinder
06/19/1991EP0432586A2 Non-woven bi-layer material, specially with long-term filter properties, and process for its manufacture
06/19/1991CN2079079U Ic engine fuel lubricant oil and filting core of air filter
06/19/1991CN1052359A Synthetic fiber filter material
06/19/1991CN1052258A Filter type ceramal dust removing device
06/13/1991CA2031988A1 Textile filter sleeves
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