| Patents for B01D 69 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor (16,729) |
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| 03/01/1989 | EP0304818A1 Gas separation membrane |
| 03/01/1989 | EP0304426A1 Osmotic distillation process and semipermeable barriers therefor. |
| 02/28/1989 | US4808315 Porous hollow fiber membrane and a method for the removal of a virus by using the same |
| 02/28/1989 | US4808312 Cellulose ester hollow fiber membrane for plasma separation |
| 02/22/1989 | EP0303684A1 Methods of making biocompatible nucleophilic material. |
| 02/22/1989 | CN1031191A Permeable membranes for enhanced gas separation |
| 02/21/1989 | US4806246 Pore size control using plasma polymerization techniques |
| 02/21/1989 | US4806189 Composite fluid separation membranes |
| 02/21/1989 | US4805343 Osmotic fiber systems |
| 02/21/1989 | CA1250108A1 Method of manufacturing a cellulose acetate membrane and the membrane so produced |
| 02/15/1989 | EP0302972A1 Dispersion process for ceramic green body |
| 02/15/1989 | EP0302949A1 A method for the removal of a virus by using a porous hollow fiber membrane |
| 02/15/1989 | EP0302928A1 Inorganic filtration membrane modified for protein separation. |
| 02/09/1989 | WO1989001159A1 Receptor membranes |
| 02/09/1989 | WO1989000879A1 Porous polymetrafluoroethylene membrane, separating apparatus using same, and process for their production |
| 02/08/1989 | EP0302650A1 Hydrophilic microporous membrane and process for preparing same |
| 02/08/1989 | EP0302494A2 Conjugated polymer-cation exchanger composite membrane and production thereof |
| 02/07/1989 | US4802988 Dehydration of glycols |
| 02/07/1989 | US4802987 Selective permeation of aromatic hydrocarbons through polyethylene glycol impregnated regenerated cellulose or cellulose acetate membranes |
| 02/07/1989 | US4802984 Composite semipermeable membrane |
| 02/07/1989 | US4802982 Spiral-wound membrane with improved permeate carrier |
| 02/07/1989 | US4802942 Method of making multilayer composite hollow fibers |
| 02/07/1989 | CA1249781A1 Methods of concentrating ligands and active membranes used therefor |
| 02/01/1989 | EP0301597A2 Permeable membranes for enhanced gas separation |
| 01/31/1989 | CA1249406A1 Process for the manufacture of asymmetric, porous membranes and product thereof |
| 01/25/1989 | EP0300038A1 Microporous asymmetric polyfluorocarbon membranes. |
| 01/24/1989 | US4800019 Tubesheet for semipermeable membrane devices |
| 01/24/1989 | CA1249111A1 Method for producing a very thin, dense membrane and (supported) membrane so produced |
| 01/24/1989 | CA1249110A1 Charge modified microporous hollow tubes |
| 01/18/1989 | EP0299381A2 Membrane-type artificial lung and method of using it |
| 01/18/1989 | EP0299063A1 Hydrophilic article and method of producing same. |
| 01/18/1989 | EP0299043A1 Microporous asymmetric polyamide membranes. |
| 01/17/1989 | US4798847 Process for the preparation of hydrophilic membranes and such membranes |
| 01/17/1989 | US4798674 Alcohol, oxygenate, membranes, concentration |
| 01/11/1989 | EP0298531A1 Gas separation apparatus and also method for separating gases by means of such an apparatus |
| 01/10/1989 | US4797211 Cross flow microfilter |
| 01/10/1989 | US4797187 Coacervation of cations |
| 01/10/1989 | US4797185 Hydrogen separation and electricity generation using novel electrolyte membrane |
| 01/03/1989 | US4795704 Confining catalyst (or enzyme) between asymmetric membranes between two liquid streams |
| 01/03/1989 | US4795559 Multilayer-air permeable non-woven fabric |
| 01/03/1989 | CA1247813A1 Cross-linked polyarylene oxide membranes |
| 12/29/1988 | WO1988010146A1 Filter element for liquid chromatography |
| 12/29/1988 | WO1988010141A1 A process for production of a semi-permeable membrane, a membranemanufactured by said process and the use of such a membrane for gas or liquid separation |
| 12/29/1988 | WO1988010140A1 A method for improving the separation properties of semi-permeable membranes and membranes accordingly improved |
| 12/27/1988 | US4794090 Polymer coating support-diagnostic assay |
| 12/27/1988 | US4794002 Modified polymeric surfaces and process for preparing same |
| 12/22/1988 | DE3719118A1 Semipermeable membrane having microporous througholes and process and apparatuses for the production thereof |
| 12/21/1988 | EP0295752A1 Apparatus suitable for plasma surface treating and process for preparing membrane layers |
| 12/20/1988 | US4792404 Using chlorine-resistant polyamide membrane |
| 12/20/1988 | CA1246816A1 Quenching and treating polysulfone membrane |
| 12/14/1988 | EP0294737A2 Polysulfone hollow fiber membrane and process for making the same |
| 12/14/1988 | EP0294725A2 Process for making highly permeable coated composite hollow fiber membranes |
| 12/13/1988 | CA1246308A1 Process for producing aromatic imide polymer hollow filaments |
| 12/07/1988 | EP0294186A2 Activated medium |
| 12/07/1988 | EP0293737A2 Ammonia separation using semipermeable membranes |
| 12/06/1988 | US4789386 Metal ionomer membranes for gas separation |
| 12/01/1988 | WO1988009200A1 Flat film permeative membrane having protrusions, its production , and bodily fluid filter |
| 12/01/1988 | WO1988006899A3 Neutralization of heparin |
| 11/30/1988 | CN88102874A Improved composite separation membranes and preparation and use thereof |
| 11/30/1988 | CN88102873A Composite membranes for enhanced fluid separation |
| 11/29/1988 | US4787982 Osmosis, dialysis, electrodialysis |
| 11/29/1988 | US4787976 Casting solution of prepolymer, nonreactive polymer, and coagulant-nonfouling by proteins |
| 11/23/1988 | EP0292325A2 Membrane system |
| 11/23/1988 | EP0291679A1 Method and production of an asymmetric membrane |
| 11/23/1988 | CN88101333A Compression moulding technique of filter film with microgaps |
| 11/17/1988 | EP0291039A1 Separator film for an electrolytic cell for moderately tritiated acid water and process for its fabrication |
| 11/15/1988 | US4784900 Method for sizing polytretrafluoroethylene fabrics |
| 11/15/1988 | US4784882 Fusion of multilayer fluoropolymers having ion exchange site |
| 11/15/1988 | US4784769 Plasma polymerized acetonitrile protective coatings and method of preparation therefor for ultrafiltration/microfiltration membranes |
| 11/15/1988 | US4784736 Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers |
| 11/08/1988 | US4783346 Interfaces, polyamides |
| 11/08/1988 | US4783201 Gas dehydration membrane apparatus |
| 11/01/1988 | US4781873 Reversed phase membranes |
| 11/01/1988 | US4781833 Dialysis |
| 11/01/1988 | US4781733 Semipermeable thin-film membranes comprising siloxane, alkoxysilyl and aryloxysilyl oligomers and copolymers |
| 10/26/1988 | EP0288380A1 Semi-permeable organo-mineral membrane, and processes for its preparation |
| 10/26/1988 | EP0288214A2 Coated products |
| 10/25/1988 | US4780411 Water-absorbing, essentially water-free membrane for reagent substrates and methods of preparing the same |
| 10/25/1988 | US4780205 Multilayer-skin overcoating, porous interiors |
| 10/25/1988 | US4780114 Molten salt hydrate membranes for the separation of gases |
| 10/20/1988 | DE3810779A1 Filter element for separating off cholesterol-containing precipitates from blood plasma |
| 10/18/1988 | US4778596 Crosslinked hydrophilic polymer; for reverse osmosis and ultrafiltration |
| 10/12/1988 | EP0286091A2 Composite membranes for enhanced fluid separation |
| 10/12/1988 | EP0286090A1 Improved composite separation membranes and the preparation and use thereof |
| 10/12/1988 | EP0285993A2 Filter element for separating cholesterol from blood plasma and disposable filter unit completed by a housing |
| 09/27/1988 | US4774039 Pore size |
| 09/27/1988 | US4774001 No adhesives |
| 09/22/1988 | WO1988006899A2 Neutralization of heparin |
| 09/22/1988 | WO1988006898A1 Membrane type artificial lung and production thereof |
| 09/20/1988 | US4772440 Method for production of porous membrane |
| 09/20/1988 | US4772394 Chlorine-resistant semipermeable membranes |
| 09/20/1988 | US4772393 Cellulose dialysis membrane with improved biocompatibility |
| 09/20/1988 | US4772392 Extrusion from mixture of solvent and nonsolvent |
| 09/20/1988 | US4772391 Composite membrane for reverse osmosis |
| 09/20/1988 | US4772390 Filter membrane of hollow microporous olefin fibers removes traces of low molecular weight organics |
| 09/13/1988 | US4770908 Process for preparing porous ceramic membrane |
| 09/13/1988 | US4770852 Hollow fiber membrane for an artificial lung |
| 09/13/1988 | US4770784 Scrubbing process for high feed concentrations |
| 09/13/1988 | US4770777 Microporous asymmetric polyamide membranes |
| 09/07/1988 | WO1988006477A1 Inorganic filtration membrane modified for protein separation |