| Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632) |
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| 06/02/2004 | EP1424312A1 Apparatus and procedure for water treatment |
| 06/02/2004 | EP1424311A1 Method of multi-stage reverse osmosis treatment |
| 06/02/2004 | EP1423339A2 Thickened aqueous compositions |
| 06/02/2004 | EP1335881B1 Process for desalination of seawater |
| 06/02/2004 | CN1501836A Controlled release cooling additive composition |
| 06/02/2004 | CN1152069C Preparing method for hydrophilic graft polymer |
| 06/02/2004 | CN1151862C Method and apparatus for high efficiency reverse osmosis operation |
| 06/01/2004 | US6743372 Media for water treatment |
| 05/27/2004 | WO2004044324A1 Method for reducing deposits in water from pulp, paper or board making machines |
| 05/27/2004 | WO2004044266A1 Metal corrosion inhibitor and hydrogen chloride formation inhibitor in a crude oil atmospheric distillation unit |
| 05/27/2004 | US20040099600 Separation of boron compounds using reverse osmosis, adsorption |
| 05/27/2004 | DE10231096B4 Filtervorrichtung und Innenbehälter für eine Filtervorrichtung Filter device and the inner container for a filter device |
| 05/26/2004 | EP1228003B1 On premise water treatment system with temperature control water release and method |
| 05/25/2004 | US6740231 Self-contained cooling system feed and bleed system |
| 05/25/2004 | US6740168 Scale conditioning agents |
| 05/25/2004 | CA2193038C A process for the controlled fixing of scale inhibitor in a subterranean formation |
| 05/21/2004 | WO2004041956A1 Heat transfer medium liquid composition |
| 05/19/2004 | EP1419111A1 Inhibiting scale deposition in oilfield tubulars |
| 05/13/2004 | US20040089610 Method and apparatus for reducing scale, corrosion, and paraffin buildup in hydrocarbon piping and for reducing scale and corrosion in water piping |
| 05/12/2004 | EP1418253A1 Scale and corrosion inhibitor composition and process for water circuits |
| 05/12/2004 | CN1496338A Method for controlling scale formation and deposition in aquesous systems |
| 05/06/2004 | WO2004019859A3 Phosphonamide and phosphonamide blend compositions and method to treat water |
| 05/06/2004 | US20040084379 Method and apparatus for treating water or wastewater to reduce organic and hardness contamination |
| 05/06/2004 | EP1414923A1 Fluid purification system |
| 05/06/2004 | EP1414757A2 Solid free-flowing phosphonate composition and method of use |
| 04/29/2004 | WO2004035487A1 Method and reactor for decalcifying and simultaneously removing harmful substances |
| 04/29/2004 | WO2004035482A1 High energy scale borer |
| 04/29/2004 | WO2004035479A1 Method and apparatus for high efficiency evaporation operation |
| 04/29/2004 | CA2799710A1 Method and apparatus for high efficiency evaporation operation |
| 04/29/2004 | CA2498850A1 Method and reactor for decalcifying and simultaneously removing harmful substances |
| 04/28/2004 | EP1297343A4 Use of control matrix for boiler control |
| 04/28/2004 | CN1491908A Barium-strontium scale resistant agent |
| 04/28/2004 | CN1491907A Composite scale resistant corrosion inhibitor and its use in reusing ammonia-nitrogen containing waste water in circulating cooling water |
| 04/22/2004 | DE10247686B3 Reactor, for the treatment of water, has direct or indirect heating and a structured gas flow to decalcify the water and separate hazardous matter combined with disinfecting it |
| 04/20/2004 | US6723293 System and method for treating cooling tower water |
| 04/20/2004 | US6723246 Filter cleaning method |
| 04/15/2004 | WO2004031481A1 Additive and method for avoiding or at least reducing deposits in water bearing and/or contacting industrial systems |
| 04/15/2004 | WO2004031474A1 Method for reducing deposits in industrial systems containing water by addition of hydrophobic organic solvent and tenside |
| 04/15/2004 | US20040072944 Reactive formulations comprising anitmicrobial polymers |
| 04/15/2004 | US20040069323 System and method for cleaning occluded water pipes in structures |
| 04/14/2004 | CN1145647C Method of producing hydrosolubles polymers, polymers thus obtained and uses of same |
| 04/08/2004 | WO2004002994A3 Novel phosphonocarboxylic acid esters |
| 04/08/2004 | US20040065617 Methods for reducing boron concentration in high salinity liquid |
| 04/08/2004 | DE10244634A1 Irrigation system, to give water sprays at time intervals, has a dosed additive of a non-corrosive decalcifying agent during irrigation to prevent furring at the water outflows |
| 04/07/2004 | EP1405828A1 A module for purifying a fluid, in particular water |
| 04/07/2004 | EP1405671A2 Method of preventing corrosion in a water system |
| 04/07/2004 | EP1404489A2 Improved scale conditioning agents |
| 04/07/2004 | CN1487262A Boiler coke eliminating agent |
| 04/07/2004 | CN1486942A Scale inhibiting, Corrosion retarding and environment protecting water treating agent |
| 04/06/2004 | US6716307 Process and system for the removal of scale build-up |
| 04/01/2004 | WO2004027335A1 A cooling system and a method for using a cooling system |
| 04/01/2004 | WO2004026768A1 Method and system for heat transfer |
| 04/01/2004 | WO2003106735A3 Method for scale removal |
| 03/31/2004 | EP1402111A1 A method for treating circulation waters |
| 03/31/2004 | EP1401777A1 Disposable cartridge for on-premises water treatment system |
| 03/31/2004 | EP1242559A4 Fluorescent monomers and polymers containing same for use in industrial water systems |
| 03/31/2004 | CN1143876C Improved chelating resins |
| 03/25/2004 | US20040056232 Water-scavenging agent for an organic electroluminescent device and organic electroluminescent device comprising same |
| 03/24/2004 | EP0868448B1 Low molecular weight structured polymers |
| 03/24/2004 | CN1483685A Water treatment agent formula |
| 03/24/2004 | CN1483684A Water treatment medicine and adding method thereof |
| 03/18/2004 | US20040050797 Scale removal or prevention |
| 03/18/2004 | US20040050793 Fluid flow; separation module; supplying water; adjustment pH; demineralization |
| 03/18/2004 | US20040050792 Method and system for heat transfer |
| 03/18/2004 | US20040050761 Apparatus for producing USP or WFI purified water |
| 03/16/2004 | US6706170 System for treating fluids in an electric field |
| 03/11/2004 | WO2004020350A1 Modified hydroxyamine for boiler water treatment |
| 03/11/2004 | WO2004019859A2 Phosphonamide and phosphonamide blend compositions and method to treat water |
| 03/11/2004 | WO2004014806A3 A combined electrochemical system for scale treatment and eradicating legionella pneumophila bacteria in water supply systems |
| 03/10/2004 | CN1481336A Phosphate stabilizing compsns |
| 03/10/2004 | CN1141262C Compound corrosion-inhibiting scale inhibitor for treatment of circulating cooling water |
| 03/10/2004 | CN1141261C Composite water treating agent with polyasparagic acid as main component |
| 03/10/2004 | CN1141258C Process for treating cyclic cooling water |
| 03/10/2004 | CN1141257C Process for treating cyclic cooling water containing sulfides |
| 03/10/2004 | CN1141256C Process for treating biological clay in circulating water system |
| 03/04/2004 | WO2003088268A3 Removal of blockages from pipework |
| 03/04/2004 | US20040040911 Phosphonamide and phosphonamide blend compositions and method to treat water |
| 03/04/2004 | US20040040910 Using ester of an hydroxyamine and an acid |
| 03/04/2004 | DE10002660B4 Reaktor zum Enthärten und/oder Aufbereiten von Wasser Reactor for softening and / or preparation of water |
| 03/03/2004 | EP1392610A1 Method for inhibiting calcium salt scale |
| 03/03/2004 | EP1392609A1 Method for inhibiting calcium salt scale |
| 03/02/2004 | CA2198247C Ionene polymers containing biologically-active anions |
| 02/26/2004 | WO2004016555A1 Discharge apparatus |
| 02/26/2004 | US20040039144 Copolymerization of acrylic acid with allyloxy monomers, in the presence of hypophosphorous acid, to form copolymer used as antideposit agents or for corrosion resistance |
| 02/26/2004 | US20040034940 Cleaning method |
| 02/25/2004 | EP1390434A1 Fine particle size lime slurries and their production |
| 02/25/2004 | CN1139548C Additive for cooling water system |
| 02/25/2004 | CN1139547C Descaling and rust-proof agent for automobile water tank |
| 02/19/2004 | WO2004014806A2 A combined electrochemical system for scale treatment and eradicating legionella pneumophila bacteria in water supply systems |
| 02/18/2004 | CN1475450A Environmental protection type scale preventing and removing agent |
| 02/12/2004 | WO2004013055A1 Process for inhibiting scale and fouling on the metal surfaces exposed to an aqueous system |
| 02/12/2004 | US20040026325 Device for treating drinking water |
| 02/11/2004 | EP1023423B1 Alkoxylated amines and their use in cleaning compositions |
| 02/11/2004 | EP0772770B2 Determining biodegradability of iminodiacetic acid derivatives, degradable chelants, uses and compositions thereof |
| 02/11/2004 | CN1137854C Magnetization device of water |
| 02/05/2004 | WO2004011475A1 Polyaminomethylenephos phonate derivatives |
| 02/05/2004 | US20040020861 Electrochemical cell and electrochemical treatment of contaminated water |
| 02/05/2004 | DE10251872B3 Water hardness control sensor device for domestic purposes, has sensor unit for acquiring a parameter, especially for controlling water hardening, and a unit for precipitating out dissolved lime in water sample |
| 02/04/2004 | CN1473137A Multifunctional water-treating composition and method of water-treating using the same |
| 02/04/2004 | CN1137055C Sterilizing method for circulating water system |