Patents
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)
08/1999
08/03/1999US5932105 Method of polyester manufacturing using crossflow membrane filtration
08/03/1999US5932104 Filtration membrane for oleophilic organic liquids, method for producing it, and method for filtering oleophilic organic liquids
08/03/1999US5932103 Withdrawal of priming fluid from extracorporeal circuit of hemodialysis machines or the like
08/03/1999US5932099 Installation for biological water treatment for the production of drinkable water
08/03/1999US5932091 Oily waste water treatment system
08/03/1999US5932085 Chlorine dioxide generation for water treatment
07/1999
07/29/1999WO1999037390A1 Apparatus comprising a flexible shell and an elastomeric tubular membrane enclosed by the shell; and method of using the apparatus for separating substances
07/29/1999WO1999037340A2 Biological fluid treatment system
07/29/1999CA2319261A1 Biological fluid treatment system
07/28/1999EP0931097A1 Carbohydrate purification using ultrafiltration, reverse osmosis and nanofiltration
07/28/1999EP0930931A1 Modular filtration system
07/27/1999US5928880 Separating target cells from a fluid sample using bound proteins in multicompartmented container; quick, efficient diagnosis
07/27/1999US5928518 Cross-flow filtration process for separating organic compound by adsorption on inorganic solids
07/27/1999US5928503 Apparatus for water purification using reverse osmosis
07/27/1999US5928488 Electrolytic migration of sulfate anions across membrane comprising perfluorocarboxylated polymeric ion exchange resin derivatized with crown ethers
07/27/1999US5928485 Desalting by partial electrodialysis of di-alkali salt of hydroxyaryl acid or dicarboxylic acid then reacting with bronsted acid
07/27/1999US5927099 Icemaking system
07/27/1999CA2132683C Microfiltration and/or ultrafiltration membrane method of the preparation of such a membrane, and a method of the filtration of a liquid by means of such a membrane
07/21/1999EP0929358A2 Improved water treatment system
07/21/1999CN1223600A Method for filtering a three-phased reaction mixture
07/21/1999CN1223596A Liquid chromatography column
07/21/1999CN1044225C Process and equipment for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons
07/20/1999US5925255 Elimination of scale causing impurities prior to concentrating feedwater stream at a selected ph, raising ph to more fully ionize remaining impurities and passing feedwater through membrane separator to elute pure water
07/20/1999US5925254 Complexing isotopes in solution with chelating agent, nanofiltration to remove resulting radioactive chelate compound and recovering sodium-containing permeate
07/20/1999US5925247 Carrier disc and membrane cushion for filtration and separation
07/13/1999US5922210 Tangential flow planar microfabricated fluid filter and method of using thereof
07/13/1999CA2093830C Process and device for continuous extraction and analysis of fluid using membrane
07/08/1999WO1999033862A1 Free solution ligand interaction molecular separation method
07/08/1999WO1999033551A1 Methods to remove metals from water
07/08/1999DE19818692C1 Monitoring of a reverse osmosis operation
07/08/1999DE19800335A1 Preparing dehydrated products especially food and pharmaceuticals, with reuse of waste water
07/07/1999EP0730675B1 Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane
07/07/1999EP0726802B1 Method and apparatus for removing air locks within manually operated micro-filtration devices
07/07/1999CN1222183A Lubricating oil dewaxing with membrane separation
07/06/1999US5920035 For treating water from a water supply
07/06/1999US5919980 Recovery and reuse of amphoteric surfactants from aqueous solutions
07/06/1999US5919721 Microfiltration of zeolites
07/06/1999US5919369 Hemofiltration and plasmafiltration devices and methods
07/06/1999US5918773 Combined water purifier/dispenser and walk-in cooler
07/06/1999CA2134477C Analysis based on flow restriction
07/06/1999CA2134475C Polynucleotide amplification analysis using a microfabricated device
07/06/1999CA2134474C Microfabricated sperm handling devices
07/01/1999WO1999032212A1 Water filtration method and apparatus
07/01/1999WO1999032186A1 Device for removal of gas bubbles and dissolved gasses in liquid
07/01/1999DE19756479A1 Coffee filter appliance
07/01/1999CA2311935A1 Device for removal of gas bubbles and dissolved gasses in liquid
06/1999
06/30/1999EP0925824A1 Process for separating metals by micellar ultrafiltration, usable for treating radioactive effluents
06/30/1999EP0925106A1 Method for filtering a three-phased reaction mixture
06/30/1999CN1220908A Dewatering method-ultrafiltration dewatering
06/29/1999US5916441 Apparatus for desalinating salt water
06/29/1999US5916440 Rigid membrane fluid treatment module
06/29/1999US5916431 Filter cleaning
06/24/1999DE19755426A1 Recovery of natural organic fruit acids, especially oxalic acid from mixture with malic and citric acids
06/23/1999EP0924184A2 A method for treating an effluent containing sorbic acid and/or a salt thereof and an effluent disposal device
06/23/1999CN1220618A Electrodeionization apparatus having geometric arrangement of ion exchange material
06/23/1999CN1220181A Process for enriched combustion using solid electrolyte ionic conductor systems
06/22/1999US5914042 Device and method for separating plasma from a blood product
06/22/1999US5914041 Reverse osmosis unit having purified liquid collection cavity and membrane placed deep within a vertical channel filled with unpurified liquid which provides pressure to cause permeate to flow through membrane into cavity
06/22/1999US5914020 Forming a wall made of flowable electrode material and comprising a series of adjacent segments vertically extending into soil, then placing vertical conductor elements into wall at spaced intervals
06/17/1999WO1999029630A1 Apparatus and method for treating water
06/17/1999WO1999029629A1 Treatment of phosphating waste water
06/17/1999WO1999029401A1 System for maintaining a clean skein of hollow fibres while filtering suspended solids
06/16/1999EP0865307A4 Microconcentrator device
06/16/1999EP0683823B1 Molasses product
06/16/1999EP0644928B1 Rectifying dialyzer, bioreactor and membrane
06/15/1999US5911884 Contamination proof purified water dispenser and method of using same
06/15/1999US5911860 Matrix material and non-metallic constituent; enhances mechanical or catalytic properties and/or sintering behavior
06/10/1999WO1999028622A1 Wave-powered prime mover
06/10/1999DE19754109A1 Abwasseraufbereitung bei der Phosphatierung Wastewater treatment in the phosphating
06/10/1999CA2312852A1 Wave-powered prime mover
06/09/1999EP0920356A2 Devices incorporating filters for filtering fluid samples
06/09/1999EP0807087B1 Water purifying machine having membrane chamber flushing
06/09/1999EP0776223B1 Arrangement for removing substances from liquids, in particular blood
06/08/1999US5910611 Treating stripped aqueous alkanolamine solution with base to neutralize alkanolamine salt, removing precipitate formed, electrodialyzing solution in cell containg two crosslinked ion exchange membranes to remove salt, recovering alkanolamine
06/08/1999US5910251 Wastewater treatment process and apparatus for high flow fluoride removal
06/08/1999US5910250 Baffle for conversion of fine bubbles to coarse while filtering with a vertical skein of hollow fibers
06/08/1999US5910249 Screening raw sewage; filtering the screened effluent through a microfiltration membrane for removal of suspended solids without an intermediate long term biological treatment stage; efficiency
06/08/1999US5910237 Process for recovering organic hydroxides from waste solutions
06/08/1999CA2143863C Hollow fiber membrane incorporating a polyimide and process for preparing same
06/03/1999WO1999026913A1 Method for producing fatty acid methyl ester and equipment for realising the same
06/03/1999WO1999026886A1 A method for purifying water, in particular ground water, under anaerobic conditions, using a membrane filtration unit, a device for purifying water, as well as drinking water obtained by using such a method
06/03/1999WO1999026716A1 Hydraulic magnetically actuated seat valve, especially for motor vehicle braking systems
06/03/1999WO1999026678A1 Systems and methods for obtaining a uniform targeted volume of concentrated red blood cells
06/03/1999WO1999009234A3 Electrosynthesis of hydroxylammonium salts and hydroxylamine using a mediator, a catalytic film, methods of making the catalytic film, and electrosynthesis of compounds using the catalytic film
06/03/1999CA2311400A1 Method for producing fatty acid methyl ester and equipment for realising the same
06/02/1999EP0776212B1 Method of producing infection-free pharmaceutical preparations and/or foodstuffs from infectious material, particular material containing prions
06/02/1999CN2321516Y Borard frame type membrane assembly for osmotic vaporization process
06/02/1999CN1218041A Desalination of aqueous sulph-namide solutions
06/01/1999US5908560 Treatment of hazardous wastewater
05/1999
05/27/1999WO1999025726A1 Method and apparatus for isolation and purification of biomolecules
05/27/1999WO1999025463A1 Apparatus and method for treating whole blood
05/26/1999CN2320317Y Permeable vaporizing plate and frame type separator
05/26/1999CN1217669A Series gravity-driven liquid-filtering apparatus for filtering blood or blood product
05/25/1999US5906739 Membrane filtration assembly
05/25/1999US5906738 Apparatus and method for removing impurities from aqueous hydrogen peroxide
05/25/1999US5906722 Electrolysis in multicompartment cell using hydrogen gas and ion exchange membranes
05/20/1999WO1999024364A1 Process for removing silica from wastewater
05/20/1999WO1999024154A1 Method of operating spiral type membrane module
05/20/1999DE19748997A1 Reverse osmosis assembly for water treatment
05/20/1999DE19747727A1 Filtering apparatus