Patents
Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884)
04/2001
04/17/2001US6218000 Stretching and sintering a tape made of a mixture of polytetrafluoroethylene and nanoparticles; thickness of less than 55 micrometers; abrasion resistance
04/17/2001US6217545 Filter with varying density which is responsive to fluid flow
04/17/2001CA2228597C Catalytic filter material and method of making same
04/17/2001CA2124629C Structures formed from cellulose acetate, use thereof for the manufacture of filter tow, use of the filter tow for the manufacture of a tobacco smoke filter element, as well as a filter tow and a tobacco smoke filter element
04/12/2001WO2001025166A1 Method of making phosphate-based ceramic filters
04/12/2001WO2001025165A1 Refractory nzp-type structures and method of making and using same
04/12/2001WO2001024909A1 Method and means for filtering an air stream with an aqueous froth
04/12/2001US20010000204 Providing an in-line filtration device including a tumor cell reduction filter positioned the inlet port and the outlet port of the housing which retains tumor cells while the stem cell product flow through and is recovered; transplantation
04/12/2001DE19941029A1 Filtereinsatz aus einem zickzackförmig gefalteten Faltenpack und Verfahren zu seiner Herstellung Filter insert consisting of a zig-zag folded fold pack and process for its preparation
04/11/2001EP1091163A1 Device for receiving and holding impurities in a fluid in a carter of a machine
04/11/2001EP1090676A1 Air filter medium, air filter pack and air filter unit comprising the same, and method for producing air filter medium
04/11/2001EP1090668A1 Chelate-forming filter, process for producing the same, and method of purifying liquid with the filter
04/11/2001EP1090665A2 Fluid filter media blend and method of forming the same
04/11/2001EP1089800A1 Filtration and extraction device and method of using the same
04/11/2001EP0907621B1 Open-cell expanded ceramic with a high level of strength, and process for the production thereof
04/11/2001EP0647250B1 Porous polytetrafluoroethylene and preparation
04/11/2001CN2426380Y Paper filter
04/11/2001CN1291113A Fuel filter
04/11/2001CN1290569A High molecular filter element and its producing process
04/11/2001CN1064269C Equipment for removing dust contg. gas
04/10/2001US6214463 Hydrophilic fibers and cloth-like articles and filters made by using the same
04/10/2001US6214227 Silicon nitride; plurality of interior passage holes; discharging holes
04/10/2001US6214094 Nonwoven web comprising electret fibers that comprise a polymer and performance-enhancing additive; useful in respirators
04/10/2001US6214093 Filter medium for air filters
04/10/2001US6214078 Permeable refractory product comprising a matrix of recrystallized silicon carbide having porosity; use as hot gas filter
04/10/2001US6214072 Ceramic coated filter medium and internal support
04/10/2001US6213122 Electret fibers and filter webs having a low level of extractable hydrocarbons
04/10/2001CA2031727C Concentric smoking filter having discrete tow and web filter media
04/05/2001WO2001023472A1 Polymer composition containing a fluorochemical oligomer
04/05/2001WO2001023351A1 Fluorochemical oligomer and use thereof
04/05/2001WO2001023307A1 Method and apparatus for multistage liquid filtration
04/05/2001WO2001023069A1 Honeycomb filter and ceramic filter assembly
04/04/2001EP1088640A1 Method for sealing a filter element in a filter cartridge and filter devices produced therefrom
04/04/2001CN1290315A Porous belts filter cloths
04/04/2001CN1289629A High-molecular filter plate and its preparing process
04/03/2001US6211100 Synthetic filter media
04/03/2001US6210458 Gas filter module having two-part filter and method of producing the same
04/03/2001US6209728 Filter element
04/03/2001US6209547 Cigarette filter
04/03/2001US6209541 Hydrophobic electrostatic breathing filters, and methods of manufacturing the same
03/2001
03/29/2001WO2001022422A1 Rigid multi-functional filter assembly
03/29/2001WO2001022421A1 Improved multi-functional molded filter for removing contaminants from an enclosure
03/29/2001WO2001021897A2 Fluid control systems
03/29/2001WO2001021285A1 Porous filter element and method of fabrication thereof
03/29/2001WO2001021284A1 Chemically active filter material
03/29/2001WO2001021283A1 Filtration media and the manufacture thereof
03/29/2001WO2001021282A2 Laminar structure
03/29/2001WO2001021279A1 Filter elements and filtering methods
03/29/2001WO2001021276A1 Liquid filter construction, method of manufacturing and use
03/29/2001DE19945768A1 Filter medium comprises fiber-containing layer with charge material applied to one side of filter medium to raise receiving capacity for medium to be filtered
03/29/2001DE10045345A1 Hydrophilic fiber, useful for fleeces disposable diapers, sanitary towels, incontinence pads, cloths, fleeces, filters, and cleaning rags for furniture and cars, includes a thermoplastic resin and a quaternary ammonium salt
03/29/2001CA2385319A1 Filter elements and filtering methods
03/29/2001CA2384942A1 Laminar structure
03/29/2001CA2383975A1 Filtration media and the manufacture thereof
03/29/2001CA2381308A1 Chemically active filter material
03/29/2001CA2284964A1 Filter for removing fine particles
03/28/2001EP1086736A1 Corrugated axial filter with simple fold pattern
03/28/2001EP1086270A1 Screen cylinder stress concentration relief
03/28/2001EP1085934A1 Triboelectric air filter
03/28/2001EP1085933A1 Phase-separation member
03/28/2001CN1289267A Methods for reforming polymer surface for improved wettability
03/28/2001CN1289001A Filter element for purifier
03/28/2001CN1288771A Light haydite and its preparation
03/27/2001US6207601 Based on cellulose esters, with fibers of mean diameter less than about 10 microns.
03/27/2001US6207445 Simple, disposable, manual apparatus; has pliant body which can be squeezed by user's fingers to pressurize fluid in chamber and cause flow through the filter; diagnosis; disposal
03/27/2001US6207255 Adsorbent article with dust collection function
03/27/2001US6206944 Honeycomb structure
03/22/2001WO2001020076A2 High dielectric non-woven fabrics and their synthetic process
03/22/2001WO2001019503A1 Corrosion-resistant filter element
03/22/2001WO2001019493A1 Welded microfilter tube comprising sintered fibers
03/22/2001WO2001019490A1 Process and filter for filtering a slurry
03/22/2001CA2384539A1 Corrosion-resistant filter element
03/21/2001EP1084722A2 Arterial blood filter
03/21/2001EP1084090A2 Dimensionally stable, cross-flow permeable fluid treatment element, especially a hot liquid filter element
03/21/2001EP1023488A4 Resin-treated mercerized fibers and products thereof
03/21/2001EP0925390B1 Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters
03/21/2001CN1063350C Filtering core
03/20/2001US6203593 Ceramic filter and method of filtrating molten metal using the same
03/20/2001CA2214122C Composite membrane
03/15/2001WO2001018289A1 Melt processable perfluoropolymer forms
03/15/2001WO2001017671A1 Apparatus and methods for the production of powders
03/15/2001WO2001017662A2 Continuous particle and molecule separation with an annular flow channel
03/15/2001CA2383861A1 Apparatus and methods for the production of powders
03/15/2001CA2383736A1 Melt processable perfluoropolymer forms
03/14/2001EP0914186B1 Filter material
03/14/2001CN1287539A Rapid coagulation-flocculation and sedimentation type waste water treatment method
03/14/2001CN1287506A Expanded porous thermoplastic polymer membranes and method and device for the production thereof
03/13/2001US6200367 Water washable stainless steel HEPA filter
03/13/2001US6199979 Ink filter element for printers
03/08/2001WO2001016050A1 Mullite bodies and methods of forming mullite bodies
03/08/2001WO2001016034A1 Pond filter
03/08/2001WO2001015795A1 Plane metal structure, especially for filtration and method for producing a plane structure as well as the use of a plane structure
03/08/2001WO2001015631A1 Method for producing improved medical devices and devices so produced
03/08/2001DE19934735A1 Polyamide reverse osmosis membranes for desalination which have improved salt rejection and flux
03/07/2001EP1080770A2 Pleated filter element and process for making the same
03/07/2001EP1079971A1 Oleophobic laminated articles, assemblies of use, and methods
03/07/2001EP1079949A1 Porous metal-containing materials, method of manufacture and products incorporating or made from the materials
03/07/2001CN1062806C Porous polytetrafluoroethylene and preparation
03/06/2001US6197709 Meltblown composites and uses thereof
03/06/2001US6197708 Dust-removing synthetic resin filter