| 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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| 03/24/1999 | CN1211929A Process for purification of opacifying contrast agents |
| 03/23/1999 | US5885461 Process and system for treatment of pig and swine manure for environmental enhancement |
| 03/18/1999 | WO1999012659A1 Process for formation of an electrode of an anion exchange membrane |
| 03/18/1999 | WO1999012651A1 Flow-through microcentrifuge |
| 03/18/1999 | DE19740327A1 Modular cross-flow filter for preparation of aqueous samples for analysis |
| 03/18/1999 | CA2301004A1 Flow-through microcentrifuge |
| 03/17/1999 | EP0901988A1 Process for treating circulating water from spray booths using liquid washing |
| 03/17/1999 | EP0814887A4 Filtration monitoring and control system |
| 03/17/1999 | EP0669851B1 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
| 03/17/1999 | CN2310615Y Microporous ceramic membrane filter |
| 03/16/1999 | US5882516 Dialyzer |
| 03/16/1999 | US5882501 Electrolysis |
| 03/16/1999 | US5882382 Polyimide semipermeable membrane |
| 03/16/1999 | US5881913 Contamination proof purified water dispenser |
| 03/11/1999 | WO1999011360A1 Desalting apparatus for the desalting of water by reverse osmosis through pressurised chambers with suspension piston and system for detecting the piston position |
| 03/11/1999 | WO1999011243A1 Process and system for production of inorganic nanoparticles |
| 03/10/1999 | EP0900249A1 Integral multi-layered ion-exchange composite membranes |
| 03/10/1999 | EP0900176A1 Electrolytic process and apparatus for controlled oxidation/reduction in aqueous solutions |
| 03/10/1999 | EP0900122A1 Process for isolation of dicarboxylic acids and hydroxycarboxylic acids |
| 03/10/1999 | EP0900094A1 Process and device for monitoring recirculation during an extracorporeal blood treatment |
| 03/10/1999 | CN1210476A Modular apparatus for demineralization of liquids |
| 03/09/1999 | US5879733 Green tea extract subjected to cation exchange treatment and nanofiltration to improve clarity and color |
| 03/09/1999 | US5879715 Precipitating inorganic nanoparticles within noncontinuous micellar phase in microemulsion, concentrating for recovery by ultrafiltration using semipermeable membrane which retains particles |
| 03/09/1999 | US5879639 Wet flue gas desulfurization system |
| 03/09/1999 | US5879558 Water conserving reverse osmosis unit and method of operating it |
| 03/09/1999 | US5879557 Procedure for filtration of fluids using MF modules |
| 03/09/1999 | CA2170738C Device and method for dialyzing samples |
| 03/09/1999 | CA2141612C Improvement to membrane type deaerator |
| 03/09/1999 | CA2075531C Creosote filtration system |
| 03/04/1999 | WO1999010284A1 Method of treating the circulation water from wet-wash spray booths |
| 03/04/1999 | WO1999010090A1 Polyion complex separation membrane with a double structure |
| 03/04/1999 | WO1999010087A1 Method for separating actinides and lanthanides by membrane transport using a calixarene |
| 03/04/1999 | WO1999010015A2 Method for producing contrast agents largely free of side-effects |
| 03/03/1999 | EP0899239A1 Method and apparatus for treating water by reverse osmosis or nanofiltration |
| 03/03/1999 | EP0899238A1 Method and apparatus for treating water by reverse osmosis or nanofiltration |
| 03/03/1999 | EP0898604A1 Lubricating oil dewaxing with membrane separation |
| 03/03/1999 | EP0799086B1 Electromembrane processes for the treatment of kraft mill electrostatic precipitator catch |
| 03/03/1999 | EP0739234A4 Hemofiltration and plasmafiltration devices and methods |
| 03/03/1999 | CN1209758A System for filtering medical and biological fluid suspension |
| 03/02/1999 | US5876611 Intraoperative blood salvaging system and method |
| 03/02/1999 | US5876604 Amorphous copolymer of perfluoro-2,2-dimethyl-1,3-dioxole |
| 03/02/1999 | US5876590 Electrochemical leaching of soil |
| 03/02/1999 | US5876579 Dehalogenation |
| 02/25/1999 | WO1999009234A2 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 |
| 02/25/1999 | WO1999008779A1 Method of converting amine hydrohalide into free amine |
| 02/25/1999 | WO1999008778A1 Method of converting amine hydrohalide into free amine |
| 02/25/1999 | DE19580599C1 Purifying dairy waste water |
| 02/24/1999 | EP0897319A1 Separation method and apparatus |
| 02/24/1999 | CN2308435Y Oil/water separating unit |
| 02/23/1999 | US5874204 Process for rejuvenation treatment of photoresist development waste |
| 02/23/1999 | US5874006 Vortex flow filtration to thicken aqueous collagen solution without clogging filter membrane |
| 02/23/1999 | US5873967 Method for making a vaccum filter device |
| 02/23/1999 | US5873260 Refrigeration apparatus and method |
| 02/18/1999 | WO1999007459A1 Cleaning method for membranes |
| 02/18/1999 | WO1999007458A1 Hollow fiber co-flow filtration device |
| 02/18/1999 | CA2301319A1 Cleaning method for membranes |
| 02/17/1999 | EP0843588B1 Compact portable hand-operated filter for purifying water |
| 02/17/1999 | EP0753127B1 Method of purifying the exhaust gases from a drying process operating with heated gas |
| 02/17/1999 | CN2307625Y High-efficient combination diaphragm electrolytic cell |
| 02/17/1999 | CN1208362A Method of filtering the organic solutions arising in the production of circuit boards |
| 02/16/1999 | US5872015 Molecular diversity screening method |
| 02/16/1999 | US5871649 Affinity membrane system and method of using same |
| 02/16/1999 | US5871648 Wastewater treatment process and apparatus for high flow impurity removal |
| 02/16/1999 | US5871639 Impurity filtration system for drinking water and monitoring device therefor |
| 02/16/1999 | CA2079617C Recovery of aprotic polar solvents from their saline aqueous solutions |
| 02/11/1999 | WO1999006323A1 Method and plant for desalting seawater exploiting hydrostatic pressure |
| 02/11/1999 | DE19752111C1 Water softener process and assembly |
| 02/10/1999 | EP0895799A1 Process and plant for treating by filtration of working fluid |
| 02/10/1999 | EP0895567A2 Linear spool valve device for work exchanger system |
| 02/09/1999 | US5869444 Osmotic agents for peritoneal dialysis |
| 02/09/1999 | US5869297 Nanofiltration process for making dextrose |
| 02/09/1999 | US5869275 Affinity ultrafiltration assay for transferase activity |
| 02/09/1999 | US5868937 Process and system for recycling and reusing gray water |
| 02/09/1999 | US5868936 Elongated housing with encased hollow fibers having ligands immobilized to internal surface for removing targeted molecules contained in blood plasma |
| 02/09/1999 | US5868933 Antimicrobial filter cartridge |
| 02/09/1999 | US5868916 Process for recovering organic hydroxides from waste solutions |
| 02/09/1999 | US5868915 Electrodeionization apparatus and method |
| 02/09/1999 | US5868906 Dehydration and purification of isopropyl alcohol to an ultradry and ultrapure level |
| 02/09/1999 | US5868557 For the remediation of a site contaminated with a hazardous substance |
| 02/04/1999 | WO1999005137A1 Method for trioxan isolation |
| 02/04/1999 | WO1999004890A1 Sanitary rigid shell spiral wound element |
| 02/04/1999 | DE19739100C1 Process and assembly to determine the maximum dialysance of a dialysis assembly |
| 02/04/1999 | DE19733407A1 Filter apparatus |
| 02/04/1999 | DE19728071A1 Filter unit, especially for dialyser |
| 02/03/1999 | EP0894770A1 Process and device for treating opaque pollutants in industrial and/or agricultural wastewater |
| 02/03/1999 | EP0894524A2 Mass transfer method |
| 02/03/1999 | EP0693882B1 Recycling salt solution in cheese processing and apparatus therefor |
| 02/03/1999 | CN1206689A Method for preparing hydrogen from solid electrolyte membrane |
| 02/02/1999 | CA2049819C Operating modes control process for an automatic water filtration device mounted on tubular membranes |
| 01/28/1999 | WO1999003786A1 Method of treating solvent-containing process liquids |
| 01/28/1999 | DE19732291A1 Verfahren zur Abtrennung von Trioxan A process for removing trioxane |
| 01/28/1999 | DE19731887A1 Sterile filtration assembly for treating e.g. rain water |
| 01/27/1999 | EP0892773A2 Preparation of aromatic hydroxycarboxylic acids and dialkali metal salts thereof |
| 01/27/1999 | EP0892677A1 Electrodeionization apparatus and method |
| 01/27/1999 | EP0892664A1 Selective membrane/sorption techniques for salvaging blood |
| 01/27/1999 | CN2305400Y Reverse osmosis pure water machine with back flushing type front precision safety filter system |
| 01/27/1999 | CN1206348A Extracts of shark cartilage |
| 01/27/1999 | CN1205987A Recovering treatment method for suspension in waste water during catalyst production |
| 01/26/1999 | US5863421 Hemodialysis machine with automatic priming by induced pressure pulses |
| 01/26/1999 | CA2081440C Electrical synthesis of palladium hydroxide compounds |