| 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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| 05/29/1990 | US4929351 Portable ultra-filtration system |
| 05/29/1990 | US4929347 Concentrating apparatus with reverse osmosis membrane |
| 05/29/1990 | CA2004051A1 Quaternary polyamines as sulfite oxidation inhibitors |
| 05/29/1990 | CA1269769A1 Modified membrane suppressor and method of use |
| 05/29/1990 | CA1269621A1 Adaptive filter concentrate flow control system and method |
| 05/29/1990 | CA1269620A2 Plasmapheresis by reciprocatory pulsatile filtration |
| 05/23/1990 | CA2003558A1 Process for the separation of a phenol |
| 05/22/1990 | US4927604 Multiwell filter plate vacuum manifold assembly |
| 05/17/1990 | WO1990005115A1 Phosphonic acids and their uses in separation |
| 05/17/1990 | WO1990005018A1 Membrane affinity apparatus and purification methods related thereto |
| 05/16/1990 | EP0368203A2 Method for recovering sulfuric acid from a titanium sulfate waste liquor |
| 05/16/1990 | EP0367774A1 Reverse osmosis apparatus. |
| 05/16/1990 | EP0216876B1 Cooling hollow fibre cross-flow separators |
| 05/16/1990 | EP0153928B1 In-line filter |
| 05/16/1990 | CN1042182A Cucumber mosaic virus coat protein gene |
| 05/15/1990 | US4925690 Microfiltration, ultrafiltration, reverse osmosis, purification |
| 05/15/1990 | US4925562 Zeolite in polysiloxane for alcohol separation |
| 05/15/1990 | US4925551 Portable water purification system including electronic memory panel assembly |
| 05/15/1990 | US4925541 Electodeionization apparatus and method |
| 05/09/1990 | EP0366844A1 Selective separation of aromatic hydrocarbons from a mixture of aromatic and saturated hydrocarbons using polyethylene glycol impregnated hydrophilic membranes |
| 05/08/1990 | US4923680 Two polymer layers |
| 05/08/1990 | US4923679 Hollow fiber membrane type oxygenator and method for manufacturing same |
| 05/08/1990 | US4923611 Ultraviolet or ionizing radiation to decrease haloalkyl groups; diffusion dialysis; permselectivity |
| 05/08/1990 | US4923609 Method and apparatus for purifying liquids employing a particulate filter and a membrane |
| 05/08/1990 | US4923598 Apparatus for the treatment of blood in particular for hemodialysis and hemofiltration |
| 05/08/1990 | CA2002276A1 Method and apparatus for recovering sulfuric acid from a titanium sulfate waste liquor |
| 05/02/1990 | EP0217874B1 Rapid vapour transport through unwetted porous barriers |
| 05/02/1990 | CN2056606U Rapid dialysis instrument |
| 05/02/1990 | CN1041707A Osmotic absorbents |
| 05/02/1990 | CN1041706A Microfilter device |
| 05/01/1990 | US4921683 Nitric oxide abatement with polymeric cobalt(III) chelates |
| 05/01/1990 | US4921612 Asymmetrically-wettable porous membrane process |
| 05/01/1990 | US4921610 Cleaning of hollow fibre filters |
| 05/01/1990 | US4921603 Anti-clogging apparatus and method for maximal flux and prolonged filtration time |
| 04/25/1990 | EP0365410A1 Space plate for a fluid exchange apparatus |
| 04/25/1990 | EP0365325A1 Wave powered prime mover |
| 04/25/1990 | EP0365248A2 Process and device for the deionization of ion-containing aqueous solutions |
| 04/25/1990 | EP0365113A1 Production of chloric acid |
| 04/25/1990 | EP0364628A1 Gas, isotope, and liquid separations by membranes |
| 04/25/1990 | EP0364545A1 Process and installation for recovering oils and fats from natural products |
| 04/25/1990 | EP0364542A1 An electronic controller for a water purifying unit. |
| 04/25/1990 | EP0364498A1 Filter units for biological sample preparation. |
| 04/24/1990 | US4920105 Membrane pouch |
| 04/24/1990 | US4919817 Blood cell washing systems and methods |
| 04/19/1990 | CA2000018A1 Spectacular break-through in gas, isotope and liquid separations and a revolutionary advance in and a master key for membrane technology and science |
| 04/18/1990 | EP0364173A1 Microfilter device |
| 04/18/1990 | EP0364111A1 Water purifier |
| 04/18/1990 | EP0363854A2 Culture fluid concentrator |
| 04/18/1990 | CN1041289A Hollow fiber multimembrane cells and permeators |
| 04/17/1990 | CA2000733A1 Culture fluid concentrator |
| 04/11/1990 | EP0220202B1 Recovery of mixed acids from mixed salts |
| 04/10/1990 | US4915844 Continuous feeding waste solution through membrane-type separator and centrifugal separator |
| 04/10/1990 | US4915838 Membrane dehumidification |
| 04/10/1990 | US4915834 Separation layer of polyvinyl alcohol or cellulose acetate on porous backing |
| 04/10/1990 | EP0352286A4 Improvements relating to separation of charged molecules. |
| 04/10/1990 | EP0302933A4 Disposable immunoassay and biochemical test device suitable for field and office use. |
| 04/10/1990 | CA2000055A1 Microfilter device |
| 04/10/1990 | CA1267610A1 Method of separating blood plasma, and apparatus therefor |
| 04/10/1990 | CA1267609A1 Separation of water from organic liquids |
| 04/05/1990 | WO1990003333A1 Water purifying system |
| 04/05/1990 | WO1990003215A1 Osmotic absorbents |
| 04/04/1990 | EP0361814A2 Fluid treatment system having low affinity for proteinaceous materials |
| 04/04/1990 | EP0361499A2 Liquid separating apparatus |
| 04/04/1990 | EP0361377A2 Pervaporation method of separating liquid organic compound mixture through aromatic imide polymer asymmetric membrane |
| 04/04/1990 | CN1041002A Fliod fluid decontamination system |
| 04/03/1990 | US4913818 Hygroscopic electrolyte with a dryness to increase the flux |
| 04/03/1990 | US4913809 Concentrating apparatus with reverse osmosis membrane |
| 03/29/1990 | DE3831965A1 Apparatus for desalting liquids, preferably sea water, by the reverse osmosis principle with a booster |
| 03/28/1990 | EP0360612A1 Water purifying system |
| 03/28/1990 | EP0360565A1 Osmotic absorbents |
| 03/28/1990 | EP0360093A2 Process for separating salts by electrodialysis |
| 03/28/1990 | EP0360009A2 Method of removing dissolved gas from liquid |
| 03/28/1990 | CN1040753A Apparatus for preparation of machining liquid for electroerosion machine |
| 03/28/1990 | CN1040752A Apparatus for preparing the machining liquid of electroerosion machine |
| 03/28/1990 | CN1040751A Apparatus for preparing machining liquid of electroerosion machine |
| 03/27/1990 | US4911845 Process and apparatus for separation of volatile components |
| 03/21/1990 | EP0359359A1 Fluid decontamination system |
| 03/21/1990 | EP0359249A2 Microfiltration apparatus & method of using the same |
| 03/21/1990 | EP0359182A1 Hollow fiber multimembrane cells and permeators |
| 03/20/1990 | US4910344 Using blend of polyvinyl alcohol and polyacrylic acid nonporous separation membrane |
| 03/20/1990 | US4910002 Cyclic process for the removal of NOx and SOx from gas streams using a water-soluble, polymeric chelate of a polyvalent metal and membrane separation means |
| 03/20/1990 | US4909950 Circulating through a ceramic filter |
| 03/20/1990 | US4909942 Process for removing pyrogens |
| 03/20/1990 | US4909937 Tubular filter enclosed in housing |
| 03/20/1990 | US4909934 Filtration unit; drain lines; reservoir; controlling means |
| 03/20/1990 | US4909933 Apparatus for mixing solutions in low gravity environments |
| 03/20/1990 | US4909916 Electrodialysis |
| 03/15/1990 | DE3926642A1 Electrodialysis appts. for recovering acid esp. organic acid from salt - with stack of 4 compartment cells separated by ion exchange membranes, sharing outer compartments and electrodes |
| 03/14/1990 | EP0358255A1 Process for purifying crude glycerol |
| 03/14/1990 | EP0357923A2 Composite semipermeable membranes and method of making same |
| 03/14/1990 | CN1007170B Method for electrode indoor damp-removing |
| 03/13/1990 | US4908134 Ultrafiltration polyamide membrane and its use for recovery of dewaxing aid (OP-3454) |
| 03/13/1990 | US4908133 Continuous multistage membrane filtration |
| 03/07/1990 | EP0357021A2 Membrane manufacturing process |
| 03/06/1990 | US4906362 Arrangement in membrane filter |
| 03/06/1990 | CA1266443A1 Filtration method and apparatus |
| 03/06/1990 | CA1266401A1 Copper bath for electroless plating having excess counter-cation and process using same |
| 03/06/1990 | CA1266367A1 Selective-permeation gas-separation process and apparatus |
| 03/01/1990 | DE3927291A1 Reverse osmosis membrane for water purificn. - is flushed free of deposits by applying pressurised raw water with very short intervals |
| 03/01/1990 | DE3828940A1 Cross-flow filtration unit for treating media containing cells, in particular blood |