| Patents for B01D 61 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (28,150) |
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| 09/29/1999 | CN1230169A Process for preparing methacrylic or acrylic esters |
| 09/28/1999 | US5958245 Nanofiltration of spent, diluted, photographic fixing bath firstly in a diafiltration mode and secondly in a concentration mode to retain thiosulfate and selectively extract halide impurities |
| 09/28/1999 | US5958244 Cross-flow filtering process for separating fluid from a free-flowing medium and installation for implementing it |
| 09/28/1999 | US5958243 Apparatus and method for membrane filtration with enhanced net flux |
| 09/28/1999 | US5958242 In situ filter cleaning |
| 09/28/1999 | US5958232 Comprising super precise filter, pressure pump, automatic control system, membrane, pressure tank, post filter and dispenser; durability |
| 09/28/1999 | US5957339 Water filtration system |
| 09/23/1999 | WO1999047226A1 Bacteria limiting water treatment and storage systems and methods |
| 09/23/1999 | CA2324107A1 Bacteria limiting water treatment and storage systems and methods |
| 09/22/1999 | EP0942778A1 Method of manufacturing polyester using crossflow membrane filtration |
| 09/22/1999 | EP0877714B1 Treatment of alkaline rinse water by reverse osmosis following neutralisation with biogenic carbon dioxide |
| 09/22/1999 | CN1229001A Micro-filtration method using fiber hose and apparatus thereof |
| 09/21/1999 | US5955029 Solid substrate microfabricated to define sample inlet port and mesoscale flow system, means to thermally regulate contents and to detect amplified polynucleotide by aggregation |
| 09/21/1999 | US5954968 Apparatus and method for separating heavy isotopes of hydrogen from water |
| 09/21/1999 | US5954966 Membrane composition and method of preparation |
| 09/21/1999 | US5954959 Microdialysis unit for molecular weight separation |
| 09/21/1999 | US5954935 Electrolytic cell arrangement for the deionization of aqueous solutions |
| 09/21/1999 | CA2181189C Mesoscale polynucleotide amplification devices |
| 09/16/1999 | WO1999045982A2 A catheter to be inserted into a blood vessel, and a method for detection of substances |
| 09/16/1999 | DE19818691C1 Control of concentration and yield in reverse osmosis plant |
| 09/16/1999 | DE19810388A1 Verfahren zur Aufbereitung von verbrauchtem Rückspülwasser Process for the treatment of spent backwash water |
| 09/15/1999 | EP0941967A2 Process for treatment of used of backwash water |
| 09/15/1999 | EP0941760A1 Charge mosaic membrane, its production process, method of its use, and apparatus provided with the same |
| 09/15/1999 | EP0941755A1 Process and apparatus for industrial printing waste water purification |
| 09/15/1999 | EP0941371A1 Method for processing sugar beets to produce a purified beet juice product |
| 09/15/1999 | EP0892664A4 Selective membrane/sorption techniques for salvaging blood |
| 09/15/1999 | EP0820537A4 Electrochemical system and method for the removal of charged species from contaminated liquid and solid wastes |
| 09/15/1999 | CN2338331Y General water purification equipment for urban and rural region |
| 09/15/1999 | CN2338329Y Water storage type micro-wave water treatment and water purification equipment |
| 09/14/1999 | US5951871 Method and apparatus for separating liquid-liquid mixtures |
| 09/14/1999 | US5951870 Automatic priming of blood sets |
| 09/14/1999 | US5951863 Water purification using reverse osmosis device for formulation of medical solution |
| 09/14/1999 | US5951845 Demetallization by metal scavenger, electrochemical machining by passing a current through the cell, regenerating the organic hydroxide, recovering from cell; waste recycling |
| 09/10/1999 | WO1999045377A1 Chemical surface for control of electroosmosis by an applied external voltage field |
| 09/10/1999 | WO1999044945A1 Method and device for eliminating or reducing the ammonium content in waste waters |
| 09/10/1999 | WO1999044727A1 Method for the purification and recovery of waste gelatin |
| 09/10/1999 | WO1999044712A1 Antimicrobial filter cartridge |
| 09/09/1999 | DE19830046C1 Removal of water from metalworking coolant-lubricating emulsions |
| 09/09/1999 | DE19808433A1 Verfahren und Vorrichtung zur Entfernung oder Reduzierung des Ammonium-Anteils aus Abwässern Method and apparatus for removing, or reducing the ammonium component of wastewater |
| 09/09/1999 | DE19807155A1 Verfahren zur Reinigung von Abwasser durch Kombination einer homogenen katalytischen Oxidation mittels Wasserstoffperoxid mit einem Membrantrennverfahren A process for the purification of waste water by combining a homogeneous catalytic oxidation by means of hydrogen peroxide with a membrane separation process |
| 09/09/1999 | DE19806796A1 Verfahren und Vorrichtung zur Behandlung und/oder Vorbehandlung von mittels einer Membranfiltereinrichtung zu behandelnden Flüssigkeiten Method and apparatus for the treatment and / or pretreatment of using a membrane filter means liquids to be treated |
| 09/08/1999 | EP0794822A4 Solid phase microextraction with vibration |
| 09/07/1999 | US5948230 Manufacturing hypochlorite solutions which comprises passing solution containing dissolved chlorine gas through diluting compartments of an electrodialysis stack, said compartments containing ion exchange granules and passing direct current |
| 09/07/1999 | US5947689 Automated, quantitative, system for filtration of liquids having a pump controller |
| 09/03/1999 | CA2264202A1 Reverse osmosis pump and shut off valve |
| 09/02/1999 | WO1999043767A1 Device and method for processing crude oil |
| 09/02/1999 | WO1999043421A1 Large tube assemblies for reverse osmosis |
| 09/02/1999 | WO1999033551A8 Methods to remove metals from water |
| 09/02/1999 | CA2321990A1 Crude oil processing apparatus and crude oil processing method |
| 09/01/1999 | EP0938367A1 Water filtration device and method of its manufacture |
| 09/01/1999 | EP0938366A1 Method for extracting amine compounds from a liquid medium |
| 09/01/1999 | EP0938365A1 Shear separation method and system |
| 09/01/1999 | EP0938351A1 Method for purifying blood plasma and apparatus suitable therefor |
| 09/01/1999 | EP0938267A1 Method of processing, in particular concentrating, fruit and/or vegetable juice and arrangement for carrying out this method |
| 09/01/1999 | EP0824503B1 Waste water treatment process for producing high yields of drinking water |
| 09/01/1999 | CN2335959Y Ultrafiltering water purifier |
| 09/01/1999 | CN2335696Y Ultrafiltering water purifier |
| 08/31/1999 | US5945192 Sealing assembly for a solid polymer ion exchange membrane |
| 08/31/1999 | US5945001 Dissolving waste gelatin; settling |
| 08/31/1999 | US5945000 Nanofiltration |
| 08/31/1999 | US5944999 Purifying a fluid |
| 08/31/1999 | US5944997 System for maintaining a clean skein of hollow fibers while filtering suspended solids |
| 08/31/1999 | US5944985 Reject water drain line installation system and apparatus for under sink reverse osmosis filter system |
| 08/31/1999 | US5944979 Electrokinetic transfer of contaminants from a thin layer of soil to a thin porous medium |
| 08/31/1999 | US5944972 Electrodialysis |
| 08/31/1999 | CA2063857C Method for environmentally benign paint spraying with an air-drying lacquer dissolved, emulgated or dispersed in water |
| 08/26/1999 | WO1999042423A1 Method and plant for the treatment of liquid organic waste |
| 08/26/1999 | WO1999042407A1 Method for purifying waste water by combining hydrogen-peroxide supported oxidation with a membrane separation method |
| 08/26/1999 | WO1999042203A2 Method and device for the treatment and/or pretreatment of liquids to be treated by means of a membrane filtration device |
| 08/26/1999 | WO1998029176A8 Method and apparatus for treatment of liquid |
| 08/26/1999 | DE19827473C1 Cross flow filter cartridge suiting diverse range of medical, industrial and laboratory applications |
| 08/26/1999 | DE19749411C1 Biological water treatment membranes subjected to intermittent reverse- flow |
| 08/26/1999 | CA2321503A1 Method for purifying waste water by combining hydrogen-peroxide supported oxidation with a membrane separation method |
| 08/25/1999 | EP0937494A2 Membrane separation system |
| 08/25/1999 | EP0725847B1 A process for the production of water-soluble salts of carboxylic and amino acids |
| 08/24/1999 | US5942442 Detection of low level analytes in samples using agglutination reaction capillary slide test and apparatus therefor |
| 08/24/1999 | US5942112 Hollow fiber ultradialyzer apparatus |
| 08/24/1999 | US5942107 Cyclone separator; filter |
| 08/19/1999 | WO1999041203A1 Water purifier |
| 08/19/1999 | DE19806768A1 Waste water treatment apparatus |
| 08/17/1999 | US5938940 Housing divided by filter element positioned between inlet and outlet and edge-sealed to housing wall; confined air is vented through outlet as fluid to be filtered enters intlet |
| 08/17/1999 | US5938928 Concentration of liquid mixture, i.e. beverages, juices, without heating |
| 08/17/1999 | US5938915 Electrolyzing raw water to generate purified proton-rich water in cathode compartment, administering cathode water to patient's blood to reduce oxyanion radicals present in blood |
| 08/17/1999 | US5938907 Electrodialysis to separate guanidine salts from aqueous solutions contaminated with residual proteins, buffers, reducing agents; simplification |
| 08/17/1999 | CA2151753C A method for treating waste water containing neutral salts comprising monovalent ions |
| 08/17/1999 | CA2110297C Methods of fabricating dual anode, flat panel electrophoretic displays |
| 08/12/1999 | WO1999040034A1 Use of reverse osmosis membranes to treat evaporator clean condensate |
| 08/12/1999 | WO1999040031A2 Water purification apparatus |
| 08/12/1999 | WO1999039799A1 Osmotic desalinization process |
| 08/12/1999 | DE19805317A1 Treating water using double reverse osmosis unit to give clean water for use in turbines, chip manufacture and pharmaceuticals |
| 08/10/1999 | US5935630 Juice and Juice aroma concentrate production |
| 08/10/1999 | CA2134476C Fluid handling in microfabricated analytical devices |
| 08/10/1999 | CA2092029C Extracting organic compounds from aqueous solutions |
| 08/06/1999 | CA2228886A1 Apparatus for the purification of liquids and a method of manufacturing and of operating same |
| 08/05/1999 | WO1999038921A1 Processes of purifying a dispersion and making inkjet inks |
| 08/05/1999 | WO1999038825A1 Method for producing alkylene glycol |
| 08/05/1999 | DE19803675A1 Verfahren zur Herstellung von Alkylenglykol Process for the preparation of alkylene glycol |
| 08/04/1999 | EP0933122A2 Apparatus and process for the separation of liquids and solids |
| 08/04/1999 | EP0932441A1 Method for operating a cross-flow filtration installation and installation for carrying out said method |
| 08/03/1999 | US5932110 Overfilling with concentrated dialysate solution chemicals; mixing with water; measurement, drainage |