Patents
Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884)
11/1998
11/10/1998US5833853 Radial-flow filter and method of manufacture
11/10/1998US5833725 Apparatus for the cleaning of dust laden gas
11/10/1998CA2113223C Multi-layer composite screen
11/10/1998CA2025195C Filter for purification of platelets
11/05/1998WO1998048918A1 Ceramic foam filter production
11/05/1998WO1998030324A3 Filterable composite adsorbents
11/04/1998EP0875524A2 Composite membranes
11/04/1998EP0875272A2 Method of producing filter elements for hot gases and the use thereof in the filtration of hot flue gases
11/04/1998EP0875271A2 Process and apparatus for the isolation and purification of nucleic acids
11/04/1998EP0874786A1 Purified natural glass product
11/04/1998EP0874677A1 Laminate filter media
11/04/1998EP0616639B1 Device and process for isolating and purifying nucleic acids
11/04/1998EP0579734B1 Method and apparatus for the continuous extrusion of solid articles
11/04/1998CN1040563C Nonwoven fabric in electret state and its production method
11/03/1998US5830415 Nickel, chromium, aluminum alloy
11/03/1998US5830360 Water purification
11/03/1998US5830340 Electric potential to control migration
11/03/1998US5830311 Corrugating apparatus
10/1998
10/29/1998WO1998048098A1 Metal chelate-forming fibers, process for producing the same, process for sequestering with the same, and filter produced therefrom
10/29/1998WO1998047599A1 Filter tube, specially for microspheres
10/28/1998EP0873775A1 Exhaust gas filter and method of producing the same
10/28/1998EP0873172A1 High stiffness nonwoven filter medium
10/28/1998EP0752901B1 Method of manufacturing flexible sheet filter material designed to keep out toxic substances, and use of the material
10/28/1998CN1197407A 滤布和过滤机 And filter cloth
10/28/1998CN1196970A Dusting unit and its operation method
10/27/1998US5827430 Coreless and spirally wound non-woven filter element
10/22/1998WO1998046534A1 Filter cartridge for gravity-fed water treatment devices
10/22/1998WO1998046327A1 Sintered plastic particles filter element
10/22/1998WO1998046325A1 Microfabricated filter and capsule formed by substrates
10/22/1998DE19742439C1 Fluid micro-filter
10/21/1998EP0871539A1 Tangential flow planar microfabricated fluid filter
10/21/1998EP0871533A1 Filter device
10/20/1998US5823260 Well screen
10/15/1998WO1998045023A1 Filtration device and process for its manufacture
10/15/1998WO1998045022A1 Filter device with filter disks
10/15/1998WO1998045021A1 A filter and filter assembly
10/15/1998DE19715244A1 Cleaning high temperature propellant for gas turbines
10/15/1998CA2284592A1 Filter device with filter disks
10/14/1998EP0869840A1 Filter arrangement
10/14/1998EP0869835A1 Leukocyte filtration method and apparatus
10/14/1998EP0773829B1 Composite membranes for solid phase extractions and reactions
10/14/1998EP0653392B1 Porous ceramic and process for producing the same
10/13/1998US5820927 Filter material production process
10/13/1998US5820755 Filter unit comprising cellulose nitrate membrane which selectively adsorbs blood leukocytes without being clogged by proteins
10/13/1998US5820644 Air filter
10/13/1998US5819952 Sifting screen
10/08/1998WO1998044198A1 Method of making a metal fiber sheet
10/08/1998WO1998044197A1 Metal fiber/metal powder sheet and process for making same
10/08/1998WO1998043796A1 Method of making a block filter
10/08/1998WO1998043756A1 Metal fiber sheet and method of making same
10/08/1998DE19714187A1 Filtervorrichtung mit Filterscheiben Filter apparatus with filter discs
10/07/1998EP0868933A1 Filter material containing thermoplastic elastomeric copolyetherester, process for its production, its use and filter press containing it
10/07/1998EP0868553A2 High efficiency breathing mask fabrics
10/07/1998EP0868214A1 Air filtration apparatus
10/07/1998EP0746399A4 Method of filtering leukocytes from fresh blood
10/06/1998US5817584 High efficiency breathing mask fabrics
10/06/1998US5817415 Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters
10/06/1998US5817325 Contact-killing antimicrobial devices
10/06/1998US5817263 End flow filter and method of making same
10/06/1998US5817237 Process for simultaneously removing leukocytes and methylene blue from plasma
10/01/1998WO1998042963A1 Exhaust emission control catalyst, exhaust emission control catalyst manufacturing method, exhaust emission control filter, exhaust emission control filter manufacturing method, and exhaust emission control apparatus
10/01/1998DE19807417A1 Selective modular filter material
10/01/1998DE19710315A1 Filterhilfsmittel Filter aid
09/1998
09/30/1998EP0808208B1 Method of forming a fibrous filter element
09/30/1998CN2292593Y Filtering device for water tank
09/29/1998US5814405 Microporous membranes with high strength
09/29/1998US5814272 Method for forming dendritic metal particles
09/29/1998US5814218 Distorted rectangular filter cloth screen for vibrating screening machine
09/24/1998WO1998041751A1 Combustion aiding member
09/24/1998DE19711809A1 Odour-adsorbing filter
09/24/1998DE19711230A1 Filter material
09/24/1998DE19650355A1 Filter medium for reducing heavy metal content of waste liquor
09/23/1998EP0865815A2 Dust collecting apparatus and operation method thereof
09/23/1998EP0865314A1 Permeable, shaped structures of active particulate bonded with psa polymer microparticulate
09/23/1998EP0735914B1 Filtration method and apparatus
09/22/1998US5809777 Diesel particulate filter apparatus
09/17/1998WO1998040206A1 Meltblown composites and uses thereof
09/17/1998WO1998040149A1 Ancillary filtering agent
09/17/1998CA2283259A1 Meltblown composites and uses thereof
09/15/1998US5808232 Gas inflator having aluminum or alumina bead filter
09/15/1998US5807424 Regenerative adsorption filter bed for exhauster hoods
09/15/1998US5806888 Air bag inflator
09/15/1998US5806154 Method of making textile laminate
09/15/1998CA2051056C Depth filter media
09/15/1998CA2029058C Opthalmic fluid dispensing method
09/15/1998CA2025069C Device and method for processing blood for human transfusion
09/11/1998WO1998039084A1 Method for making a composite filter
09/09/1998EP0862997A2 Continuous solid state web coating process and webs produced thereby
09/09/1998EP0862508A1 Method for producing a sintered part
09/09/1998CN1192790A Fibrous webs having enhanced electret properties
09/09/1998CN1039701C Method and solid material body for purifying fluids such as water, aqueous fluids and liquid fuels
09/08/1998US5804527 Planar structural part as filler-or carrier body for catalysts, condenser bodies, filters and the like
09/08/1998US5804295 Fibrous filtration face mask having corrugated polymeric microfiber filter layer
09/08/1998US5804280 Porous filter medium includes polyamide, fluoropolymer, polyethersulfone, polysulfone, acrylic polymer, polyester or cellulose ester; adhesive free bonding
09/08/1998US5804128 Cylindrical filter and process for producing the same
09/08/1998US5804074 Porous plastic filter and process for its production
09/03/1998WO1998037944A1 Pollution abating filter for internal combustion engines
09/03/1998WO1998037943A1 Flow-through filter and method for making a flow-through filter
09/03/1998DE19723213A1 Flameproof filter
09/03/1998DE19707378A1 Filter material, for handling hot gases