| Patents for B01D 39 - Filtering material for liquid or gaseous fluids (24,884) |
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| 09/27/1977 | US4050237 Demister assembly for removing liquids from gases |
| 09/20/1977 | USRE29410 Process for manufacturing of deodorizing air filters |
| 09/20/1977 | US4049673 Preparation of ferrous hemoglobin and enzymatic digestion products thereof active for absorption of carbon monoxide |
| 09/13/1977 | US4047914 Internally supported multi-stage sleeve filter |
| 09/13/1977 | US4047862 Lightweight paper |
| 09/06/1977 | US4046359 Injection molding filter assembly |
| 08/30/1977 | US4045353 High-energy radiation induced polymerization on a chromatographic solid support |
| 08/30/1977 | US4045338 Method of removing scale-forming substances from hot water system |
| 08/16/1977 | US4042359 Alkali borosilicate glass, silicon dioxide, boron oxide |
| 08/16/1977 | US4042352 Fixed packed beds |
| 08/09/1977 | US4041195 Compression |
| 08/02/1977 | US4039448 Filter with an open-cell elastomeric foam |
| 08/02/1977 | US4039308 Air filter |
| 07/26/1977 | US4037524 Apparatus for combining a tube with a cigarette filter |
| 07/05/1977 | US4033881 Multilayer paper sheet filter cartridges |
| 07/05/1977 | US4033822 Enzyme-coupled ultrafiltration membranes |
| 06/28/1977 | US4032688 Seamless tubular nonwoven webs and filters thereof |
| 06/28/1977 | US4032457 Plural stage filter cartridge wherein at least one stage comprises pulverized particulate material |
| 06/28/1977 | US4032311 Tank filter |
| 06/28/1977 | US4032124 Apparatus and method for in-line degassing and filtration of molten metal |
| 05/31/1977 | US4026978 Gelling by immersion in water |
| 05/24/1977 | US4025679 Fibrillated polytetrafluoroethylene woven filter fabric |
| 05/17/1977 | US4024548 Liquid absorbing assembly with two porosities |
| 05/17/1977 | US4024212 Ceramic foam and method of preparation |
| 05/17/1977 | US4024056 Filtering of molten metal |
| 05/10/1977 | US4022596 Porous packing and separator medium |
| 05/03/1977 | US4021281 Density, spinning rate |
| 04/19/1977 | US4018596 Carbonyl nickel powder |
| 04/12/1977 | US4017571 Deforming packed beads, rigidifying liquid filler, removing beads |
| 04/12/1977 | US4017570 Method of producing three dimensional skeletal structures |
| 04/12/1977 | US4017100 Fluid supply, filter pack used therein and method of assembly |
| 04/05/1977 | US4016080 Fluid filter and purifying apparatus |
| 03/22/1977 | US4013503 Filamentary silicon carbide crystals by VLS growth in molten iron |
| 03/15/1977 | US4012211 Filter for occupant restraint system fluid supply |
| 03/08/1977 | US4011067 Filter medium layered between supporting layers |
| 02/08/1977 | US4007114 Melamine-formaldehyde cationic colloid |
| 02/08/1977 | US4007113 Particulate filter medium and process |
| 02/01/1977 | US4006054 Method of making filter tubes |
| 01/25/1977 | US4005010 Method of packing media in a tower or bed |
| 12/28/1976 | US4000066 Treating liquid and granular material in panel bed |
| 12/21/1976 | US3998988 Conjugate fiber, fibrous material and fibrous article made therefrom and process for production thereof |
| 12/21/1976 | US3998916 Isotactic polypropylene |
| 12/14/1976 | US3997098 Helically seamed tubing and apparatus and method for making same |
| 11/30/1976 | US3994258 Apparatus for the production of filters by electrostatic fiber spinning |
| 11/23/1976 | US3993567 Bar or wire-like elements for use in classifying and screening apparatus |
| 11/09/1976 | US3991169 Dispersing, shaping, heating and carbonizing |
| 10/19/1976 | US3986851 Filter of polytetrafluoroethylene fibers |
| 10/05/1976 | US3984044 Retention means for mechanical separation and process of making same |
| 09/28/1976 | US3982897 Filter and detector and methods of using same in the removal and detection of carbon monoxide from, and in, a gas stream |
| 09/21/1976 | US3981352 Metal casting mold with bonded particle filter |
| 09/14/1976 | US3980445 Austenitic stainless steel |
| 09/07/1976 | US3979253 Method for dispersing glass fibers for the preparation of glass filter media |
| 08/10/1976 | US3974072 Filtration method |
| 08/03/1976 | US3972818 Blood filter using glassy carbon fibers |
| 08/03/1976 | US3972694 Filter tube |
| 07/27/1976 | US3971657 Aluminum coated with oxide, potassium fluoaluminate complex flux |
| 07/06/1976 | US3968297 Polytetrafluoroethylene coatings for glass fabrics |
| 06/29/1976 | US3966646 Fabricating bodies |
| 06/22/1976 | US3965010 Chromium-silicon-carbon-nitrogen-iron alloy |
| 06/22/1976 | US3965004 Removal of contaminants from water |
| 06/08/1976 | US3962091 Rotary drum filter with wire deck, apparatus and method |
| 06/08/1976 | US3962081 Molten metal |
| 06/08/1976 | US3961918 For obtaining dialysis liquid |
| 06/01/1976 | US3961007 Slurrying in acetone and water, agitation, shearing |
| 06/01/1976 | US3960651 Reinforced air-pervious polytetrafluorothylene sheet |
| 05/18/1976 | US3957938 Pretreatment of polytetrafluoroethylene filter bags |
| 05/18/1976 | US3957652 Pocket screen assemblies for centrifugal separators and replacement therefor |
| 05/18/1976 | US3957059 Smoking product and process |
| 04/20/1976 | US3951814 Coalescing unit for gravity separator |
| 04/13/1976 | US3950257 Acrylonitrile-vinyl copolymers, solvents |
| 04/13/1976 | US3950255 Supported semi-permeable membranes |
| 04/13/1976 | US3950157 Ram air filter for light aircraft |
| 04/13/1976 | US3949651 Method of making filter media |
| 04/06/1976 | US3949115 Carbon |
| 03/30/1976 | US3947363 Ceramic foam filter |
| 03/30/1976 | US3947362 Filter with an open-celled elastomer foam |
| 03/16/1976 | US3944690 Production of nonwoven fabrics |
| 02/17/1976 | US3939079 Filter medium which permits increased amount of filtration |
| 02/10/1976 | US3937860 Filtration material |
| 01/20/1976 | US3933652 Process of manufacturing a porous, stainless steel filter element and sealing it in a tubular fitting, and resulting filter |
| 01/20/1976 | US3933643 Electrically conducting filter media for fluids |
| 01/20/1976 | US3933561 Process for manufacturing ultrathin polymer membranes and products derived therefrom |
| 01/20/1976 | US3933557 Continuous production of nonwoven webs from thermoplastic fibers and products |
| 01/20/1976 | US3933452 Filter cartridge for suspended particles |