| Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884) |
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| 10/25/1983 | CA1155632A1 Asbestiform crystalline calcium sodium or lithium phosphate, preparation and compositions |
| 10/18/1983 | CA1155406A1 Aerosol filter cartridge |
| 10/11/1983 | US4409284 Porous moldings made of accumulated mass of stringy or thready extrudates |
| 10/05/1983 | EP0090483A2 Polyamide membrane and process for its production |
| 10/05/1983 | EP0090073A2 Process for making a flexible, air-permeable, textile, flat sheet-like filter for protective suits |
| 10/05/1983 | EP0090062A1 Process and apparatus for the manufacture of electret filaments, fibres or the like |
| 10/04/1983 | US4407967 Method for producing spheroidal ceramics |
| 09/28/1983 | EP0089756A1 Particulate filters for use with diesel engines |
| 09/21/1983 | EP0089127A1 Apparatus for filtering solid particulates |
| 09/20/1983 | US4405548 Filter bed of microcrystalline bauxite containing ferric oxide |
| 09/13/1983 | US4404007 Exhaust gas cleaning element |
| 09/13/1983 | CA1153711A1 Method for producing ceramic honeycomb filters |
| 09/13/1983 | CA1153710A1 Ceramic honeycomb filter |
| 09/13/1983 | CA1153709A1 Ceramic honeycomb filter |
| 09/07/1983 | EP0087789A1 Porous ceramic article |
| 09/06/1983 | US4402827 Phenolic resin-impregnated felt |
| 09/06/1983 | CA1153319A1 Support for backflushable filter media |
| 09/06/1983 | CA1153318A1 Surgical drainage bags |
| 08/31/1983 | EP0087228A1 Polyamide membrane with controlled surface properties and process for its production |
| 08/31/1983 | EP0087067A1 Exhaust gas filter and method of making the same |
| 08/30/1983 | CA1153019A1 Molten metal filter |
| 08/17/1983 | EP0085917A2 Fibrous media containing millimicron-sized particles |
| 08/16/1983 | US4398931 Ceramic fabric filter |
| 08/10/1983 | EP0085576A2 Separating devices and methods |
| 08/10/1983 | EP0085166A1 A filter and a process for the preparation thereof |
| 08/03/1983 | EP0084711A1 Filter |
| 08/02/1983 | US4396572 Simulatenous extrusion of pastes, baking |
| 08/02/1983 | US4396565 Sintering a ceramic-dipped column of open-cell foam having a core and periphery of different cell density; high strength |
| 07/27/1983 | EP0084143A1 Process for the production of a filter medium |
| 07/26/1983 | US4395333 Pre-wet and reinforced molten metal filter |
| 07/26/1983 | US4395332 Adsorption and filtration mat for liquids |
| 07/21/1983 | WO1983002469A1 High bulk pulp, filter media utilizing such pulp, related processes |
| 07/19/1983 | US4394146 Filter apparatus |
| 07/12/1983 | US4392876 Filter packing |
| 07/12/1983 | CA1149975A1 Sludge dewatering system |
| 07/12/1983 | CA1149699A1 Filter and method of making same |
| 07/05/1983 | US4391918 Ceramic foam filter and aqueous slurry for making same |
| 06/28/1983 | US4390355 Ceramic monolith |
| 06/28/1983 | CA1148873A1 Multilayered filter medium of varying porosity between two support jackets |
| 06/28/1983 | CA1148872A1 Filter with inorganic cationic colloidal silica |
| 06/22/1983 | EP0081869A1 A non-woven tube for membrane filtration and method of forming same |
| 06/21/1983 | USRE31285 High molecular weight, nonpolar polymeric material such as polypropylene |
| 06/21/1983 | US4389224 Method and apparatus for accreting fibrous filter cartridges or other tubular articles |
| 06/14/1983 | US4388192 Process and a device for purifying water |
| 05/31/1983 | US4385998 Removal of suspended solids from water |
| 05/25/1983 | EP0079431A1 Single-layer paper-making fabric |
| 05/17/1983 | US4383925 Filters |
| 05/17/1983 | CA1146518A1 Process for the recovery of solid matter from gases, liquids or solid, raw wastes |
| 05/10/1983 | US4382440 Smoke and pollutant filtering device |
| 05/10/1983 | US4382378 Method for testing filtration efficiency |
| 05/10/1983 | CA1145950A1 Method for processing radioactive wastes |
| 05/10/1983 | CA1145906A1 Spray spinning collection unit |
| 05/03/1983 | US4381998 Supported layer of adhestively bonded roughly-shaped particles in a particle-size gradient; water treatment; sludge |
| 04/27/1983 | EP0077633A1 Filter media |
| 04/26/1983 | CA1145270A1 Ceramic filters for diesel exhaust particulates and methods of making |
| 04/20/1983 | EP0077227A1 Elastomeric separator membrane, its preparation process and its use in hydropneumatic suspension systems |
| 04/13/1983 | EP0076781A2 Filter medium in the form of a stable porous body |
| 04/13/1983 | EP0076442A1 A hollow fiber of cuprammonium regenerated cellulose and process for producing the same |
| 04/12/1983 | US4379465 Process for producing a filtering structure in particular for cigarette filters |
| 03/30/1983 | EP0074978A1 Ceramic filter, method for manufacturing and utilizing this filter |
| 03/23/1983 | EP0074735A1 Rigid sludge dewatering filter plate |
| 03/16/1983 | EP0073854A1 Fibrous materials |
| 03/15/1983 | US4376675 Method of manufacturing an inorganic fiber filter tube and product |
| 03/09/1983 | EP0073634A1 Selectively plugged sinterable honeycomb structures |
| 03/08/1983 | US4375718 Method of making fibrous electrets |
| 03/08/1983 | CA1142312A1 Silicic acid fibers and their use |
| 02/15/1983 | US4374175 Novel water-swellable fibers and process for producing the same |
| 02/09/1983 | EP0071170A2 Articles selectively permeables to fluids and gases made from copolymers that contain fluor, and being oleophobic and oleophylic at the same time |
| 02/08/1983 | US4372859 Method of removing minuscule solid particles from liquid and system therefor |
| 02/08/1983 | US4372328 Fibrous material for tobacco smoke filter |
| 02/01/1983 | US4371101 Filtering screen for use in apparatus for the dosing of powdered material |
| 02/01/1983 | CA1140522A1 Bacteriostatic filter media |
| 02/01/1983 | CA1140484A1 Diesel exhaust particulate traps |
| 01/25/1983 | CA1140058A1 Gas inflator structures with improved cooling filters and method of making the filters |
| 01/19/1983 | EP0070203A1 Method and apparatus for selectively manifolding honeycomb structures |
| 01/19/1983 | EP0070202A1 Method and apparatus for selectively charging honeycomb structures |
| 01/18/1983 | US4369218 Felt for dehydration of a fiber web |
| 01/18/1983 | US4369117 Filter inserts in centrifuge tubes |
| 01/18/1983 | US4369116 Liquid filtration method |
| 01/12/1983 | EP0069323A1 Filter mat, especially for kitchen fume hoods, etc., and process for its production |
| 01/12/1983 | EP0069146A1 V-shaped filter |
| 01/11/1983 | US4368277 Redox systems for water treatment |
| 01/04/1983 | CA1138726A1 Shaped structures with incorporations |
| 12/28/1982 | US4366068 Filter and method of making same |
| 12/28/1982 | US4366054 Between porous support jackets, and containing active charcoal |
| 12/28/1982 | CA1138351A1 Three-dimensional filter elements of a flat textile structure |
| 12/22/1982 | EP0067631A1 Flame retardant activated carbon web |
| 12/21/1982 | US4364761 Ceramic filters for diesel exhaust particulates and methods for making |
| 12/21/1982 | US4364760 Containing parallel channels |
| 12/14/1982 | US4363682 Process for the superficial treatment of a fibrous filtering layer, which is non-woven and highly aerated, forming electret |
| 12/14/1982 | US4363644 Filter for purifying exhaust gas |
| 12/14/1982 | CA1137523A1 Ceramic porous body |
| 12/14/1982 | CA1137419A1 Cartridge filter for separating radioactive contaminants from reactor cooling water |
| 12/08/1982 | EP0066414A2 Filter of poly(tetrafluoroethylene) |
| 12/07/1982 | US4362624 Paint strainer |
| 11/30/1982 | US4361619 Filter of poly(tetrafluoroethylene) and glass fibers |
| 11/30/1982 | US4361486 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms, and particulate filter aid |
| 11/23/1982 | US4360433 Filter elements for gas or liquid |
| 11/17/1982 | EP0064647A1 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms, and particulate filter aid |
| 11/17/1982 | EP0064620A1 Silica for the filtration of beverages, especially beer, and method for the production |