| Patents for B01D 65 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes (9,726) |
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| 08/27/1991 | US5043071 Method of backwashing tubular filter membranes, and apparatus for implementing the method |
| 08/27/1991 | US5043067 Cross-flow permeator |
| 08/27/1991 | US5043066 Fluid purifying apparatus and method of purifying fluids |
| 08/27/1991 | CA1288057C Cross flow microfilter |
| 08/22/1991 | WO1991012027A1 Process for depleting viruses in solutions and for determining the depletion rate of the viruses |
| 08/21/1991 | EP0442677A2 Process for dehydration of gases |
| 08/20/1991 | US5041220 Hollow fiber filter cartridge for a standarized housing |
| 08/14/1991 | EP0441721A1 Hollow fibre apparatus |
| 08/13/1991 | US5039411 Fluid purifying apparatus and method of purifying fluids |
| 08/13/1991 | CA2036122A1 Process for dehydration of gases and composite permeable membranes therefor |
| 08/08/1991 | DE4003543A1 Verfahren zur abreicherung von viren in loesungen und zur bestimmung der abreicherungsrate von viren Method for depleting viruses in loesungen and determination of the depletion rate of virus |
| 08/06/1991 | US5037547 Dual stage filter cartridge for a reverse osmosis purification system |
| 07/31/1991 | EP0438595A1 Jig and device for filtration |
| 07/30/1991 | US5035799 Filter assembly |
| 07/24/1991 | EP0438214A2 Reversible membrane plant |
| 07/23/1991 | US5034121 Apparatus for preparing a machining liquid of an electroerosion machine |
| 07/23/1991 | CA1286612C Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 07/20/1991 | CA2034598A1 Gas separation apparatus |
| 07/16/1991 | CA1286104C Dehydration method and dehydration system |
| 07/09/1991 | US5030672 Sulfonated polyarylether sulfone |
| 07/02/1991 | US5028319 Apparatus for the preparation of machining liquid for an electroerosion machine |
| 06/19/1991 | EP0433200A1 Water filtration and purification process |
| 06/19/1991 | CN1012879B Improved composite separation membranes and preparation and use thereof |
| 05/22/1991 | CN1051519A Improved membrane seporation system and method of operation |
| 05/21/1991 | US5017284 Fluid purifying apparatus and method of purifying fluids |
| 05/15/1991 | EP0427376A2 Membrane separation system and method of operation |
| 05/15/1991 | EP0427055A2 Process and appliance for sterilising a medical assembly group |
| 05/14/1991 | US5015374 Closure cap for dialyzers |
| 05/09/1991 | CA2020631A1 Membrane separation system and method of operation |
| 05/07/1991 | US5013446 Beads, rotating blade |
| 05/02/1991 | WO1991005600A1 Filter device with radial and axial flow subassemblies |
| 05/02/1991 | EP0424439A1 Apparatus and method for the autotransfusion of blood. |
| 04/30/1991 | US5011603 Alumina powder; high strength |
| 04/23/1991 | US5009758 Closed noncontinuous electrodeposition painting system |
| 04/17/1991 | EP0422137A1 Spiral filter. |
| 04/16/1991 | US5008189 Flowing stream over membrane and through channel under specific conditions of viscosity, velocity, and channel height |
| 04/11/1991 | DE4021123A1 Cross-flow membrane filtration of cells from liq. - which is propelled by gas pressure from alternately operated containers |
| 04/11/1991 | DE3930023A1 Maintaining filter sterility by heat from conductive section - incorporated in filter and directly or inductively heated |
| 04/10/1991 | EP0420847A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 04/09/1991 | US5006253 Inducing the fluid flow by depressurization; nondeforming, cleaning |
| 04/02/1991 | US5004548 Method and apparatus for rinsing and priming an exchanger |
| 04/02/1991 | CA1282345C Variable volume filter or concentrator |
| 03/30/1991 | WO1991004783A1 Filter cartridge manifold |
| 03/30/1991 | CA2042405A1 Filter cartridge manifold |
| 03/26/1991 | US5002668 Housing containing a penetrable membrane sealing an evacuation outlet |
| 03/26/1991 | US5002664 Fluid flow control device for R.O. filtration purification systems |
| 03/20/1991 | EP0417389A1 Anti-clogging apparatus and method for maximal flux and prolonged filtration time |
| 03/13/1991 | CN1011944B Ultrafiltration apparatus |
| 03/12/1991 | WO1991003313A1 Driving device for a vortex mixing apparatus |
| 03/12/1991 | CA2059637A1 Driving device for a vortex mixing apparatus |
| 03/05/1991 | US4997564 Hollow fiber ultrafiltration replacement cartridge |
| 02/27/1991 | EP0414082A1 Filter element for treating liquid |
| 02/26/1991 | US4995977 Apparatus for filtering and separating flow medium |
| 02/21/1991 | WO1991001796A1 Orbital/oscillation filtration system with no rotary seal |
| 02/21/1991 | WO1991001787A1 Chromatographic gel contactor and process |
| 02/20/1991 | EP0413265A2 Transparent, steam-sterilisable, compact polyurethane casting materials, process for their preparation and their use, in particular for medical technical articles |
| 02/19/1991 | US4994184 Ultrafiltration device and process |
| 02/19/1991 | CA2023523A1 Transparent, steam sterilizable, noncellular polyurethane compositions, a process for their preparation and their use especially for medicinal articles |
| 02/19/1991 | CA1280262C Asymmetric semi-permeable membrane having high salt rejection |
| 02/18/1991 | WO1991002555A1 Method and apparatus for effecting the transfer of heat or mass through a membrane involving the use of vortices |
| 02/18/1991 | CA2059539A1 Method and apparatus for effecting the transfer of heat or mass through a membrane involving the use of vorticles |
| 02/12/1991 | US4992641 Apparatus for preparing a machining liquid of an electroerosion machine |
| 02/12/1991 | US4992170 Reverse osmosis filter cartridge assembly |
| 02/05/1991 | US4990256 Method, device and filter module for the filtration of liquids in cross-flow operation |
| 02/05/1991 | US4990248 Reverse osmosis apparatus |
| 01/29/1991 | US4988444 Prevention of biofouling of reverse osmosis membranes |
| 01/24/1991 | WO1991000766A1 Jig and device for filtration |
| 01/24/1991 | DE3923692A1 Medical blood treatment apparatus - has pump and heat exchanger which are mounted one behind other in common housing |
| 01/23/1991 | EP0381666A4 Filter cartridge |
| 01/22/1991 | US4987219 Heat resistance, chemical resistance, dielectrics |
| 01/22/1991 | US4986918 Membrane separation system and method of operation |
| 01/22/1991 | CA1279271C Cross-flow filtration |
| 01/17/1991 | DE3921839A1 Enzymatischer reiniger Enzymatic cleaners |
| 01/16/1991 | EP0407737A1 Method for testing a hemodialysis membrane |
| 01/10/1991 | WO1991000333A1 Enzymatic cleaner |
| 01/10/1991 | WO1991000135A1 Membrane filtration apparatus |
| 01/08/1991 | US4983301 Method and apparatus for treating fluids containing foreign materials by membrane filter equipment |
| 12/27/1990 | WO1990015660A1 Bag-like filter |
| 12/27/1990 | CA1278264C Water purification device |
| 12/25/1990 | US4980066 Multiple membrane separation systems |
| 12/25/1990 | US4980055 Solution permeator |
| 12/19/1990 | EP0403074A2 Multiple tube series membrane filtration module and method of preparing same |
| 12/11/1990 | US4976876 Point-of-use membrane filtration system |
| 12/11/1990 | US4976867 Test module containing fiber loops connected to pressurized feed liquid and immersed in immiscible extractant |
| 12/04/1990 | CA1277206C Diaphragm chamber device |
| 11/29/1990 | DE4015187A1 Device for sepg. liq. mixtures - has membrane on inner rotating cylinder inside outer stationary cylinder with vanes to produce highly turbulent flow between cylinders |
| 11/29/1990 | DE3916745A1 Filter device with tubular cartridge - obtd. by applying controlled gas pressure to ensure steady liq. level rise inside filter casing and to provide even distribution of cake |
| 11/28/1990 | EP0399593A1 Process for purifying alkali metal metaborate solutions and alkali metal perborate prepared from these solutions |
| 11/28/1990 | EP0225906B1 Improvements in filters |
| 11/22/1990 | CA2016884A1 Process for the purification of alkaline metal metaborate solutions; alkaline metal peroxoborate prepared from these solutions |
| 11/14/1990 | EP0397184A1 Prevention of biofouling of reverse osmosis membranes |
| 11/14/1990 | EP0396853A2 Spacer for conducting fluids |
| 11/13/1990 | US4969997 Fluid-impermeable areas on porous membrane filters and their application |
| 11/12/1990 | CA2016582A1 Prevention of biofouling of reverse osmosis membranes |
| 11/08/1990 | DE3914940A1 Reverse osmosis purifies part of water supply for drinking - while remaining flow is used for less demanding domestic needs |
| 11/07/1990 | EP0396258A2 Apparatus and method for predetermining maximum pressure differentials for microporous hollow fibres employed in liquid liquid extractions |
| 11/06/1990 | US4968600 Apparatus for separating cell suspension |
| 11/06/1990 | US4968429 Anti-clogging method for maximal flux and prolonged filtration time |
| 10/30/1990 | CA1275750C Dense star polymers for calibrating/characterizing sub-micron apertures |
| 10/24/1990 | CN1010131B Porous polyamines |