| 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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| 02/03/2004 | US6685910 As ion exchangers |
| 02/03/2004 | US6685840 Preparing solid water treatment product and placing in test water; providing a fluorometer; measuring fluorescent signal of fluorescent tracer in test water; repeating measurement of fluorescent signal; determining rate of dissolution |
| 01/29/2004 | WO2004009606A1 Method of preventing or reducing aluminosilicate scale in a bayer process |
| 01/28/2004 | CN1471419A Water filter cartridge having a proportional flow feeder |
| 01/28/2004 | CN1470464A Efficient water-saving phosphine-free water treatment chemical for environmental protection |
| 01/22/2004 | WO2004007374A1 Filter appliance and inner container for a filter appliance |
| 01/22/2004 | US20040014989 Inorganic composition, process of preparation and method of use |
| 01/22/2004 | US20040014623 Sequestering |
| 01/22/2004 | US20040011744 Method of preventing or reducing aluminosilicate scale in a bayer process |
| 01/22/2004 | US20040011743 Process for inhibiting scale and fouling on the metal surfaces exposed to an aqeuous system |
| 01/22/2004 | DE10231096A1 Filtervorrichtung und Innenbehälter für eine Filtervorrichtung Filter device and the inner container for a filter device |
| 01/21/2004 | CN1468812A Magnetic fluid processing apparatus |
| 01/20/2004 | US6679988 Apparatus for producing USP or WFI purified water |
| 01/15/2004 | DE20121886U1 Einrichtung zur Behandlung von Trinkwasser Apparatus for the treatment of drinking water |
| 01/14/2004 | EP1379475A1 Method for controllong scale formation and deposition in aquesous systems |
| 01/14/2004 | EP1379474A2 Process and apparatus for the removal of scale build-up |
| 01/14/2004 | EP1379473A1 Corrosion inhibitors for aqueous systems |
| 01/08/2004 | WO2004002994A2 Novel phosphonocarboxylic acid esters |
| 01/08/2004 | US20040006253 Heavy metal particulate (HMP) emission speciation modification process |
| 01/08/2004 | CA2490931A1 Novel phosphonocarboxylic acid esters |
| 01/07/2004 | EP1378492A1 Remover for scale deposited on titanium material |
| 01/07/2004 | CN2597471Y Scale-proof device for water heater |
| 01/07/2004 | CN1465535A Fragrance deodorizing filtering and cleaning block and making method thereof |
| 01/06/2004 | CA2345294C Cleaning and passivating water distribution systems |
| 01/02/2004 | EP1272433B1 Sulphur-free lignin and derivatives thereof for reducing the formation of slime and deposits in industrial plants |
| 12/31/2003 | CN1463935A Environment-friendly water quality stabilizer |
| 12/31/2003 | CN1132792C Phosphate-free corrosion inhibitor and its prepn |
| 12/31/2003 | CN1132791C Process for suppressing corrosion of cyclic cooling water |
| 12/30/2003 | US6669853 For adding to industrial/institutional water systems, such as steam generating systems |
| 12/24/2003 | WO2003106735A2 Method for scale removal |
| 12/24/2003 | WO2003106353A1 Method of purifying fischer-tropsch derived water |
| 12/24/2003 | WO2003106348A1 Methods for reducing boron concentration in high salinity liquid |
| 12/18/2003 | WO2002048043A3 Porous static water softener containing hybrid zeolite-silicate composition |
| 12/18/2003 | US20030230531 Method for reducing boron concentration in high salinity liquid |
| 12/17/2003 | EP1370351A2 Controlled realease cooling additive composition |
| 12/11/2003 | US20030226808 Prevention, reducing, dissolving scale deposits; using mixture og phosphorous compound, chelate compound and surfactant |
| 12/11/2003 | US20030226794 Steam boiler scale inhibitor, sludge (TSS) and TDS control, and automatic bottom blow-down management system |
| 12/10/2003 | EP1368509A2 Composition and method for inhibition of metal corrosion |
| 12/10/2003 | CN1461233A 水软化器 Water softener |
| 12/09/2003 | US6660167 Method for precipitating or flocculating substances out of solutions |
| 12/09/2003 | CA2156880C Apparatus and method for automatically achieving and maintaining congruent control in an industrial boiler |
| 12/04/2003 | WO2003099726A1 A kind of nano-material for water treatment and its use |
| 12/03/2003 | EP1366086A1 Reactive formulations comprising antimicrobial polymers |
| 12/03/2003 | CN1459424A Special corrosion and scale inhibitor for surface evaporation air cooling |
| 12/02/2003 | US6657546 Integrated water treatment control system with probe failure detection |
| 12/02/2003 | US6656377 Inorganic composition, process of preparation and method of use |
| 12/02/2003 | US6656365 Within water cooling/supply systems, via ozone which is used for disinfection, and high molecular weight homo/copolymers of acrylic acid, methacyrlic acid, maleic acid, maleic anhydride, and itaconic acid |
| 11/27/2003 | WO2002066384A8 Device for chemically/physically treating drinking water |
| 11/26/2003 | EP1364916A1 Method of anaerobic digestion of organic and non organic waste to produce premium compost or recycled fuel |
| 11/26/2003 | EP1363858A1 Device for chemically/physically treating drinking water |
| 11/26/2003 | CN1458907A Treatment of iron sulphide deposits |
| 11/26/2003 | CN1458172A Polynary copolymer containing ether phosphonic acid and sulfon carboxylic acid and process for preparing multifunctional water treating agent |
| 11/26/2003 | CN1458085A Environment protection high efficiency water scale cleaning agent |
| 11/26/2003 | CN1458084A Multifunctional phosphate glass water treating agent and its preparing method |
| 11/26/2003 | CN1128764C Corrosion-retarding compound scaling inhibitor for treating middle-or high-hardness circulating water |
| 11/26/2003 | CN1128657C Method for reducing scaling in electrodeionization system |
| 11/25/2003 | US6651383 Methods of utilizing waste waters produced by water purification processing |
| 11/20/2003 | WO2003059539A3 Countermeasure washdown system cleaning |
| 11/20/2003 | US20030215353 Using random copolymers of acrylic acid and a monomer that is hydrophobic. |
| 11/19/2003 | CN1456537A Multifunctional natural mineral preparation |
| 11/18/2003 | US6649050 Water purification system |
| 11/12/2003 | CN2585895Y Water treatment medicament adding device |
| 11/12/2003 | CN1455757A Process for desalination of seawater |
| 11/12/2003 | CN1454909A Itaconic acid copolymer, and preparing method and use thereof |
| 11/11/2003 | US6645428 Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems |
| 11/11/2003 | US6645400 Of metals which experience active-passive transition in contact with an electrolyte |
| 11/11/2003 | US6645384 Adding synergistic amount of 1)polymer of allyloxybenzenesulfonic acid, methallylsulfonic acid, a nonionic monomer and an unsaturated acid and 2)2-phosphonobutane-1,2,4-tricarboxylic acid |
| 11/06/2003 | US20030205536 Dissolving a deposit with an aqueous treatment solution of a reducing agent and a complexing agent that has a phosphonic acid group, phosphonate group, or a complexing agent of hydroxy acid type. |
| 11/05/2003 | CN2584599Y Control device for chamical treatment of circulating water of central air conditioner |
| 11/04/2003 | US6641754 Method for controlling scale formation and deposition in aqueous systems |
| 11/04/2003 | US6641740 Especially for use in automatic washing machines |
| 10/30/2003 | WO2003000464A3 Improved scale conditioning agents |
| 10/30/2003 | US20030201235 Fractional deionization process |
| 10/23/2003 | WO2003088268A2 Removal of blockages from pipework |
| 10/22/2003 | CN1450979A Cleaning method |
| 10/22/2003 | CN1124992C Corrosion-retarding compound scaling inhibitor for treating circulating low-hardness water |
| 10/22/2003 | CN1124991C Corrosion inhibitor for deionized water |
| 10/22/2003 | CN1124990C Corrosion inhibitor composition for circular cooling water |
| 10/22/2003 | CN1124989C Method for reusing treated sewage in circulating water system |
| 10/21/2003 | US6635177 Introducing sewage to the bottom of a fermentation cell; removing suspended solids, microorganisms, nutrients, and pathogens from the sewage to produce a disinfected quaternary effluent; producing purified water |
| 10/15/2003 | EP1351889A1 Phosphate stabilizing compositions |
| 10/14/2003 | CA2087199C Method and compositions for removing deposits from cooling water systems |
| 10/08/2003 | EP1350768A1 Scale and corrosion inhibitor |
| 10/08/2003 | EP0822921B1 Treatment for inhibiting microbial adhesion on surfaces |
| 10/07/2003 | CA2335496C Apparatus for treating flowstreams by electromagnetic flux |
| 10/02/2003 | WO2003080225A1 Upw treatment and system with organic nitrogen removal |
| 10/02/2003 | WO2000075399A3 Composition and method for inhibition of metal corrosion |
| 10/02/2003 | US20030183253 A method of cleaning household articles entails contacting cleaning water with a container containing a substantially water-insoluble modifying agent able to bind calcium ions. The container is permeable to water and to calcium ions but |
| 10/01/2003 | CN1122644C Recompounded multielement antisludging corrosion inhibitor |
| 09/30/2003 | CA2125224C Methods and composition for controlling scale formation in aqueous systems |
| 09/25/2003 | WO2003078333A1 Method of controlling deposit formation in aqueous systems |
| 09/25/2003 | WO2003078022A1 Fluid treatment apparatus |
| 09/25/2003 | WO2003011773A3 Solid free-flowing phosphonate composition and method of use |
| 09/24/2003 | EP1346957A2 Multifonctional calcium carbonate and calcium phospate scale inhibitor |
| 09/24/2003 | EP1345859A1 Prevention of the deposition of calcium fluoride |
| 09/24/2003 | EP1345857A1 Reclaiming water and usable brine concentrate from domestic sewage |
| 09/24/2003 | EP1254144B1 Novel phosphorus compounds |
| 09/24/2003 | CN2575596Y Steel rail displacement observation apparatus |
| 09/23/2003 | US6623658 Combining such as a polyacrylamide and polyallyldimethyl ammonium chloride; reducing stickies |
| 09/18/2003 | US20030173304 Fluid treatment apparatus |