Patents
Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884)
05/1987
05/05/1987US4663222 Non-woven fabric, and oil water separating filter and oil-water separating method
05/05/1987US4663041 Fluoropolymer
05/05/1987US4662911 Efficient honeycomb filter; cellular ceramic prefilter
04/1987
04/28/1987US4661255 Coarse and fine filter layer of natural and synthetic fibers
04/28/1987US4661132 Themally formed gradient density filter
04/28/1987CA1221080A1 Fibrous media containing millimicron-sized particulates
04/23/1987DE3537976C1 Filter device for soot particle filtration
04/22/1987EP0219383A1 Use of sinterable powders of silicon carbide having a particular grain size distribution for producing porous ceramic filter elements, and ceramics thus obtained
04/22/1987EP0218777A2 Process for the continuous thermoforming of double tubular fabrics and device for its realization
04/21/1987US4658755 Method for filtration of coatings
04/16/1987DE3518562A1 Air filter for living rooms
04/09/1987WO1987002069A1 Filtration of aluminium-lithium alloys
04/08/1987EP0217482A1 Filter element
04/07/1987US4656073 Bristle collapse during weaving
04/07/1987US4655939 Non-swelling, non-plugging
04/07/1987US4655797 Fine screen and fine screen stack, their use and process for the manufacture of fine screens
04/07/1987CA1220016A1 Scrubber apparatus for purifying foul air produced during an embalming, an autopsy or the like
04/01/1987EP0216730A2 Porous spherical glass filtrating beads and method for the manufacturing thereof
04/01/1987EP0216729A1 Filter plug for cleaning exhaust gases from diesel engines
04/01/1987CN85107129A Filter of carbon/carbon compound material
03/1987
03/31/1987US4654228 Thermophoresis deposition, control pore size
03/31/1987CA1219816A1 Filtration element, and its manufacture
03/31/1987CA1219736A1 Method of producing permeable, porous molded bodies of silicon carbide
03/31/1987CA1219712A1 Method of producing porous carbon bodies of high permeability
03/26/1987WO1987001655A1 Composite having improved transverse structural integrity and flexibility for use in high temperature environnments and method of making the same
03/26/1987WO1987001610A1 Filter body and process for its manufacture
03/25/1987EP0215346A2 Porous polymer fibers
03/25/1987EP0215191A1 Panel air filter
03/24/1987US4652379 Filtering impurities from liquid using mineral wool fiber material
03/24/1987US4652376 Method for disposing emulsifiable oil-containing waste water
03/24/1987US4652286 Exhaust gas filter
03/24/1987US4652282 Electretized material for a dust filter
03/24/1987CA1219441A1 Porous ceramic filter body and a method to fabricate such a body
03/19/1987DE3531937A1 Filter material for separating off pollutants in safety cabins, motor vehicle cabins etc.
03/18/1987EP0214374A1 Thermally formed filter
03/17/1987US4650506 Fiber containing filters
03/17/1987CA1219223A1 Filter
03/11/1987EP0213902A2 Improvements in the manufacture of microsieves and the resulting microsieves
03/10/1987CA1218940A1 Filter and a process for the preparation thereof
03/04/1987EP0212466A2 Method for forming filter element and forming apparatus therefor
03/04/1987EP0212230A2 Process for the production of porous objects
03/04/1987EP0212082A1 Thermally formed gradient density filter
03/04/1987CN86105813A Thermally formed filter
03/04/1987CN86105330A Improvements in the mfr. of microsieves and the resulting microsieves
03/03/1987US4647415 Method of producing a filter pad
02/1987
02/25/1987EP0211233A1 Exhaust gas cleaning catalyst and process for production thereof
02/24/1987US4645605 Filtration with biogenetic silica
02/24/1987US4645597 Filter medium and method of manufacturing the same
02/24/1987US4645567 Depositing cationically and anionically modified silica colloid
02/17/1987US4643749 Ceramic filters
02/17/1987US4643182 Nonwoven glass fibers, polystyrene, pet, polyvinyl alcohol and gas adsorbent
02/11/1987CN86105545A Thermally formed gradient density filter
02/11/1987CN86105517A Pancl air filter
02/03/1987US4640778 Nondeforming; uniform pore size
01/1987
01/28/1987EP0209789A2 Method of separating pollutants from water-solvent mixtures
01/27/1987US4639318 Tubular filter primarily intended for filtration of liquids
01/20/1987US4637876 Disc shaped filter element
01/20/1987CA1216836A1 Filter paper
01/14/1987EP0208629A1 Process for manufacturing an inorganic membrane support for separation techniques
01/14/1987EP0208515A2 Filter process and filters therefor
01/14/1987EP0208450A2 Beer filtration
01/14/1987EP0208218A2 Coagulation-neutral, hydrophilic glass fibres
01/14/1987EP0208043A1 Method of producing a strip-formed filter for use in drainage
01/13/1987US4636429 Polypropylene web treated with polypropylene glycol
01/13/1987US4636231 Panel air filter
01/08/1987DE3523597A1 Process and apparatus for removing solids from liquids
01/08/1987DE3523068A1 Process for producing a filter having pores of a predetermined and roughly equal microsize
01/08/1987DE3522725A1 Process for producing a filter having pores of a predetermined and roughly equal microsize and a filter produced by this method
01/07/1987EP0207668A1 Ceramic spheroids having low density and high crush resistance
01/07/1987EP0207588A1 Filter paper and method of producing same
01/02/1987DE3522287A1 Open-pored body for filtering and/or catalytic treatment of gases or liquids and process for the production thereof
01/02/1987DE3521880A1 Dust collector shield
12/1986
12/30/1986US4632876 Mineral core with aluminum or magnesium oxide shell
12/30/1986US4632683 Pore size distribution; blowing agent and additional pore forming agent
12/30/1986EP0207070A2 Process for regenerating a cooking liquor from a waste magnesium bisulphite cooking liquor, and filter apparatus for carrying out the process
12/30/1986EP0206250A1 Ceramic structure
12/30/1986CA1215913A1 Absorption material for filter arrangement
12/23/1986US4631077 Foam plastic air filter
12/16/1986US4629483 Ceramic filter with plural layers of different porosity
12/16/1986US4629474 Thermally formed filter
12/09/1986US4627863 Web of resilient material on cylindrical core
12/02/1986US4626359 Filter
12/02/1986US4626263 Blend of polar and nonpolar polymer with siland modified nonpolar polymer
12/02/1986CA1214731A1 Filter
11/1986
11/26/1986EP0202617A2 A porous filter media
11/26/1986EP0175769A4 Polyethylene molding composition and process.
11/18/1986US4623560 Method of making water removing filter media
11/18/1986US4623462 Oil filters using water-based latex binders
11/18/1986US4623438 High speed continuous processing
11/05/1986CN85203872U Combined sintering micropososity filter pipe
11/04/1986US4620932 Impregnated matrix with copolymer of alkyl (meth)acrylate and acrylic acid, polyethylenimine and epoxy resin
10/1986
10/29/1986EP0199528A2 Filter
10/29/1986EP0199150A1 Non-woven activated carbon fabric
10/28/1986US4619948 Composite active filter material
10/28/1986US4619805 Molding carbon powder and binder, crushing, molding, and coking in vacuum
10/22/1986EP0198289A2 Method for manufacturing plastic sieve elements
10/22/1986EP0198270A2 Treatment process of strongly acid ion exchange catalysts
10/21/1986US4618388 Water removing filter media and method of making the same
10/15/1986EP0197692A1 Air filter
10/14/1986US4617128 Particulate filter aid, filter bed and process