| 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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| 10/20/2004 | CN1538940A Method for inhibiting calcium salt scale |
| 10/20/2004 | CN1172025C Corrosion inhibiting method for cooling water system of production equipment in shutdown period |
| 10/20/2004 | CN1171802C System for treating fluids in electric field |
| 10/14/2004 | US20040204323 boring well bores using mixtures of water, nanoparticles comprising polyvinyl pyrrolidone or rubber latex, and optionally salts, antifoams, biocides,corrosion inhibitors, dispersants, flocculants,scavengers, lubricants, scavengers, antiscaling or flow control agents |
| 10/07/2004 | WO2004085318A1 Apparatus and method for continuous electrodeionization |
| 10/07/2004 | US20040195187 Inhibiting scale deposition in oilfield tubulars |
| 10/06/2004 | EP1464627A1 Water conditioning composition |
| 10/06/2004 | CN1169726C Method for eliminating wastewater effection of oil field on three element composite surface tension |
| 09/30/2004 | WO2004083131A1 Formulation for corrosion and scale inhibition |
| 09/30/2004 | US20040188352 Apparatus and method for continuous electrodeionization |
| 09/30/2004 | CA2517192A1 Formulation for corrosion and scale inhibition |
| 09/28/2004 | US6797197 Modified amine for boiler water treatment |
| 09/28/2004 | US6797177 Process for inhibiting scale and fouling on the metal surfaces exposed to an aqeuous system |
| 09/23/2004 | DE10310414A1 Water conditioner for use in still or flowing water (e.g. in oil exploration 'squeeze' operations) contains a polysuccinimide and a biostat |
| 09/22/2004 | CN1531615A Process and apparatus for removal of scale build-up |
| 09/22/2004 | CN1167634C Boiler scale preventing and eliminating agent |
| 09/22/2004 | CN1167633C Descaling agent for IC engine |
| 09/21/2004 | CA2116260C Method of inhibiting calcium oxalate scale deposition |
| 09/16/2004 | WO2004078662A1 Scale inhibitor |
| 09/15/2004 | EP1456132A1 Fractional deionization process |
| 09/15/2004 | EP1363858B1 Device for chemically/physically treating drinking water |
| 09/15/2004 | CN1166576C Scale and/or corrosion inhibiting composition |
| 09/09/2004 | US20040173514 Automatic chemical feed system |
| 09/08/2004 | CN1526663A Scale inhibiting dispersant for high temperature gas scrubbing water system |
| 09/08/2004 | CN1526662A Softening and coagulating treatment process of gas scrubbing water |
| 09/08/2004 | CN1165470C Communication tool system and method for providing communication function |
| 09/07/2004 | US6787037 Flocculation, precipitation, filtration |
| 09/01/2004 | EP1451114A1 Coolant treatment formulation |
| 09/01/2004 | EP1278703B1 Sequestering |
| 09/01/2004 | CN1524893A Synthesis of poly epoxy succinate |
| 09/01/2004 | CN1524862A Organic silicate comprising ether, preparing process and application thereof |
| 09/01/2004 | CN1524803A Industrial sewage deodorant and preparing process thereof |
| 09/01/2004 | CN1524799A Method for extinguishing alga in cooling water system |
| 09/01/2004 | CN1164511C Method for preparing methylene phosphonic carboxylic acid |
| 08/26/2004 | WO2004072327A1 Composition and method for removing and/or preventing scaling of elements in processing equipment |
| 08/26/2004 | DE10112934B4 Verfahren zur Vermeidung und Beseitigung von Inkrustationen bei der Förderung und Ableitung von Flüssigkeiten Procedures to avoid and eliminate incrustations in the promotion and discharge of liquids |
| 08/25/2004 | EP1448484A1 Cleaning method |
| 08/25/2004 | EP1448483A1 Water-softening tablet |
| 08/25/2004 | EP1109750B1 Process and product for the inhibition of scale in harsh systems |
| 08/25/2004 | CN2635668Y Automatic controller for adding lime milk into clarifier |
| 08/19/2004 | WO2004069369A2 Point-of-use water softener |
| 08/19/2004 | US20040162406 polymers with the pendant group or end group containing Si(OR)3 (where R is H, an alkyl group, Na, K, or NH4) are used to reduce or eliminate aluminosilicate |
| 08/18/2004 | EP1446549A1 Oil-soluble scale inhibitors with formulation for environmently friendly composition |
| 08/18/2004 | EP1284935A4 Use of control matrix for cooling water systems control |
| 08/18/2004 | EP1284929A4 Autocycle control of cooling water systems |
| 08/18/2004 | CN2633878Y Self purifying boiler |
| 08/18/2004 | CN1522296A Improved scale conditioning agents |
| 08/18/2004 | CN1162357C Process for treating circulated cooling water in production of sodium hydroxide |
| 08/17/2004 | CA2111314C Algaecidal and herbicidal compositions |
| 08/05/2004 | US20040149310 Partial dissolution, softening, and disruption; pretreating with chelant and reducing agent in pH controlled solution; cleaning heat exchangers; effective against highly densified magnetite; faster, low temperature, reduced waste, noncorrosive |
| 08/04/2004 | EP1441988A1 Control of biofilms in industrial water systems |
| 07/29/2004 | WO2004063319A1 Cleaning liquid of piping in die and cleaning method of piping in die |
| 07/29/2004 | US20040144707 A water treatment system comprising a magnetic field generator for fluxing and directing water fluid go through or cut through the magnetic line in an angle, filtration; reduce membrane fouling, changing most precipitates to aragonite |
| 07/29/2004 | US20040144702 Controller for salt dosage for a water softener and method of regenerating a water softener |
| 07/29/2004 | US20040144402 Cleaning using solution of alkali metal bisulfate and mineral acid |
| 07/29/2004 | CA2456248A1 Method of dissolving scale |
| 07/27/2004 | US6767989 Copolymerizing hypophosphorous acid or salt or ester thereof with acetylenic compound |
| 07/27/2004 | US6767470 Admixing sodium chlorite solution with a second solution containing an acid to make a reacted mixture; introducing a predetermined amount of reacted mixture into a water system |
| 07/27/2004 | CA2083390C Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor |
| 07/27/2004 | CA2063294C Inhibition of silica and silicate deposition in cooling water systems |
| 07/22/2004 | US20040142834 Soap and process for cleaning wash water |
| 07/21/2004 | EP1439195A2 Water soluble polymers with low content of residual monomers and their use |
| 07/15/2004 | US20040135125 Antiscaling agents |
| 07/15/2004 | US20040135124 Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems |
| 07/14/2004 | EP1437494A1 Device for controlling the conductivity, adjusting the acidity and de-mineralising the water in the cooling circuit of an engine |
| 07/14/2004 | EP1436457A1 Textile finishing composition and methods for using same |
| 07/14/2004 | CN2625380Y Water purifying installation for shower |
| 07/14/2004 | CN1512968A Corrosion inhibitor for aqueous systems |
| 07/14/2004 | CN1511793A Polynary itaconic acid copolymer as high efficiency anti-sludging agent and preparing method |
| 07/13/2004 | US6761774 Comprising a chelating agent having at least two carboxylic acid functional groups and a basic agent selected from alkali metal hydroxides; for in situ removal of silicate-containing scale from interior surfaces of boilers |
| 07/08/2004 | US20040129637 having a plurality of hollow fibre nanofiltration or reverse osmosis membranes suspended between a pair of opposed headers; membranes are arranged in groups and form preceding or succeeding stages; useful for small scale filtration |
| 07/08/2004 | US20040129620 Device for chemically/physically treating drinking water |
| 07/08/2004 | US20040129175 Fine particle size lime slurries and their production |
| 07/07/2004 | EP1337473B1 Electrochemical cell and electrochemical treatment of contaminated water |
| 07/07/2004 | CN1510085A Cassade polymer composition with trigger response |
| 07/07/2004 | CN1509996A Pretreatment filming agent and pretreatment filming method for circulating cooling water system |
| 07/07/2004 | CN1156655C Water softener valve |
| 07/01/2004 | WO2004054936A1 Stabilized aqueous folic acid preparation and process for providing the same |
| 07/01/2004 | WO2004054933A1 Magnetic conditioning of fluids and gases and apparatus therefor |
| 06/30/2004 | EP1432653A2 Scale control composition |
| 06/30/2004 | EP1432534A1 Method for treatment against corrosion and depositions in domestic supply water installations and apparatus therefor |
| 06/30/2004 | EP1218293B1 On premise water treatment system and method |
| 06/29/2004 | US6755968 Liquid magnetic processing unit |
| 06/24/2004 | US20040118783 producing a softened alkaline water stream by using an alkali agent to precipitate the hardness minerals; utilizing the softened alkaline water stream to scrub a flue gas containing sulfur dioxide |
| 06/24/2004 | US20040118042 Methods of utilizing waste waters produced by water purification processing |
| 06/23/2004 | EP1431674A1 Water heater comprising water softening means |
| 06/23/2004 | CN1507417A Water treatment method and water treatment equipment |
| 06/23/2004 | CN1506638A 热水器 Water Heater |
| 06/23/2004 | CN1506325A Tracing water quality stabilizer |
| 06/17/2004 | US20040116766 Reducing leaching of metals; complexing; water and air pollution control |
| 06/17/2004 | US20040112812 Water heater |
| 06/16/2004 | EP1428867A1 Multi-stage polymer compositions having a triggered response |
| 06/16/2004 | CN1153848C Chemical for water treatment and method of water treatment |
| 06/10/2004 | US20040110891 Multi-stage polymer compositions having a triggered response |
| 06/10/2004 | US20040108262 Chemical dispenser cartridge for filter devices |
| 06/09/2004 | CN1152831C Super-high magnetic fluid treating apparatus |
| 06/09/2004 | CA2450592A1 Multi-stage polymer compositions having a triggered response |
| 06/03/2004 | WO2004046271A1 Descaling and corrosion inhibiting composition |
| 06/03/2004 | US20040104161 Module for purifying a fluid, in particular water |
| 06/03/2004 | DE19606633B4 Einrichtung zur physikalischen Wasseraufbereitung Device for physical water treatment |