| Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632) |
|---|
| 03/06/2002 | CN1338434A Process for treating cyclic cooling water containing sulfides |
| 03/06/2002 | CN1338433A Method for using treated sewage in circulating water system |
| 02/28/2002 | US20020023847 Inputting an electrolyte and water into an electrolysis unit; generating, in electrolysis an alkaline solution for cleansing and an acidic solution for disinfecting; outputting alkaline solution or acidic solution from electrolysis unit onto object |
| 02/27/2002 | EP1181251A1 Utilization of maleic acid copolymers as inhibitors of calcium oxalate coatings |
| 02/26/2002 | US6350410 Method and composition for inhibiting biological fouling in an irrigation system |
| 02/26/2002 | US6350376 Reductive heat exchange water and heat exchange system using such water |
| 02/20/2002 | CN1079504C Compressor installation |
| 02/20/2002 | CN1079380C Water-treating chemical |
| 02/14/2002 | WO2002012130A1 Method and composition for cleaning and maintaining water delivery systems |
| 02/13/2002 | EP0800622B1 Compressor installation |
| 02/13/2002 | CN1079084C Method for preventing heating water of boiler from illegal using |
| 02/12/2002 | US6346217 Mixing disinfectant solution and cleaning solution consisting of amidosulfonic acid, nitrilotriacetic acid, isopropanol and water, applying to surface of tank, rinsing surface with water to remove deposits |
| 02/12/2002 | US6345632 A section of the system is isolated and chemically cleaned, then is immediately passivated using a high concentration of passivating agent. |
| 02/07/2002 | WO2001044120A3 On premise water treatment system with temperature control water release and method |
| 02/07/2002 | US20020016430 Production process for allyl ether-based polymer |
| 02/07/2002 | US20020014463 Method and composition for cleaning and maintaining water delivery systems |
| 02/06/2002 | EP0863850B1 Drinking water system cleaner, cleaning method and use thereof |
| 01/31/2002 | WO2002008127A1 Treatment of iron sulphide deposits |
| 01/31/2002 | WO2001072402A3 Process for management of industrial wastes |
| 01/31/2002 | US20020012414 Polymer dispersants and methods of use in a nuclear steam generator |
| 01/24/2002 | US20020008067 Accessible well for brine tank |
| 01/23/2002 | CN1332614A Drip-type coffee-maker comprising water treatment device |
| 01/23/2002 | CN1332122A Multifunctional central air conditioner water quality maintaining agent and its prepn. |
| 01/17/2002 | WO2002004100A1 Multi-stage filtration and softening module and reduced scaling operation |
| 01/17/2002 | DE10033392A1 Reduction or dissolution of deposits of chalk or calcium compounds on organic or inorganic materials comprises use of composition containing magnesium, sodium, aluminium and phosphorus ions |
| 01/17/2002 | CA2383962A1 Multi-stage filtration and softening module and reduced scaling operation |
| 01/16/2002 | CN1331051A Corrosion-retarding compound scaling inhibitor for treating middle- or high-hardness circulating water |
| 01/16/2002 | CN1331050A Corrosion-retarding compound scaling inhibitor for treating circulating low-hardness water |
| 01/10/2002 | WO2002002465A1 Device for determining the calcite equilibrium in water |
| 01/08/2002 | US6337047 Process for dispersing iron oxide in steam generating boilers |
| 01/07/2002 | CA2313740A1 Multi-stage filtration and softening module and reduced scaling operation |
| 01/02/2002 | EP1167297A2 Physical-chemical process for the treatment of swimming pool water |
| 01/02/2002 | EP1165450A1 Rust and scale removal composition and process |
| 01/02/2002 | CN2469442Y Controller for automatic adding chemicals in circulating water system |
| 01/02/2002 | CN1329578A Method and compositions for minimizing biological and colloidal fouling |
| 01/02/2002 | CN1077087C Biocidal algae-killing agent and synthetic method for industrial water treatment |
| 01/01/2002 | US6336058 Use of control matrix for boiler control |
| 01/01/2002 | US6335404 Aqueous process for preparing aqueous weight carboxyl containing polymers |
| 01/01/2002 | US6335394 Low molecular weight structured polymers |
| 01/01/2002 | US6334904 Tablet comprising combination of organic, multifunctional polycarboxylic acid, or alkali metal salt thereof, and partially neutralized polyacrylic acid having specified molecular weight |
| 12/27/2001 | WO2001098558A2 Corrosion control utilizing a hydrogen peroxide donor |
| 12/27/2001 | CA2413888A1 Corrosion control utilizing a hydrogen peroxide donor |
| 12/25/2001 | US6333005 Adding and forming anti-scalant in the aqueous system, wherein the anti-scalant comprises polyvalent metal silicate and polyvalent metal carbonate; adding copolymer of maleic anhydride and isobutylene |
| 12/25/2001 | US6332960 Electrostatic fluid purifying device and method of purifying a fluid |
| 12/20/2001 | WO2001096243A1 Process for desalination of seawater |
| 12/20/2001 | WO2001096240A1 Stabilised calcium hydroxide slurries |
| 12/20/2001 | WO2001096239A1 Stabilised magnesium hydroxide slurries |
| 12/20/2001 | US20010053836 Antideposit agents |
| 12/20/2001 | CA2410223A1 Stabilised calcium hydroxide slurries |
| 12/18/2001 | US6331513 Antiscaling mixture of aminotristmethylidene diphosphonic acid, chelate compound, organophosphorus compound, hydroxyacetic acid, sodium bicarbonate and ammonium hydroxide |
| 12/18/2001 | US6331255 Accessible well for brine tank |
| 12/13/2001 | US20010050171 Process for management of industrial wastes (law900) |
| 12/12/2001 | EP1162177A1 Electrostatic fluid purifying device and method of purifying a fluid |
| 12/12/2001 | EP1060135B1 Process for controlling scale in the sugar process |
| 12/11/2001 | US6329484 Low molecular weight structured polymers |
| 12/05/2001 | EP1109750A4 Process for the inhibition of scale in harsh systems and novel antiscalants for same |
| 12/05/2001 | CN1324797A Sulfonic acid-containing organic phosphine carboxylic acid compound and its prepn. and application |
| 12/04/2001 | US6325926 Liquid treatment apparatus |
| 12/04/2001 | US6325925 Liquid treatment apparatus |
| 12/01/2001 | CA2349808A1 Electrostatic fluid purifying device and method of purifying a fluid |
| 11/29/2001 | US20010047221 Use of control matrix for boiler control |
| 11/29/2001 | US20010045393 Using urea sulfate, urea hydrochloride, triethanolamine hydrochloride, triethanolamine sulfate to adjust pH |
| 11/28/2001 | EP1158009A2 Production process for allyl ether-based polymer |
| 11/28/2001 | EP1156986A1 System for treating fluids in an electric field |
| 11/28/2001 | CN1323750A Composite water treating agent with polyasparagic acid as main component |
| 11/27/2001 | US6322708 Low molecular weight structured polymers |
| 11/27/2001 | US6322707 Low molecular weight structured polymers |
| 11/21/2001 | CN1074898C Ionene polymers, producing process, its intermediate and use |
| 11/15/2001 | WO2001085616A2 Scale and corrosion inhibitors |
| 11/15/2001 | DE19951461A1 Water purification assembly has a filter and ultrasonic stage to prepare the water for oxidation in an electrical field in a recirculating water flow to disinfect drinking water |
| 11/14/2001 | EP1152986A1 Scale and/or corrosion inhibiting composition |
| 11/14/2001 | EP1152985A1 Carbon dioxide treatment of atmospheric cooling water |
| 11/14/2001 | CN1074772C Aqueous process for preparing low molecular weight polymers |
| 11/13/2001 | US6315975 Suspension system using fumed silica |
| 11/13/2001 | US6315909 Use of control matrix for cooling water systems control |
| 11/13/2001 | US6314668 Household appliance and cassette with disincrustant means, and disincrustant method in a household appliance |
| 11/08/2001 | WO2001084162A1 Use of control matrix for boiler control |
| 11/08/2001 | WO2001083384A1 Use of control matrix for cooling water systems control |
| 11/08/2001 | WO2001083380A1 Method of inhibiting biofilm formation in commercial and industrial water systems |
| 11/08/2001 | WO2001083375A1 Autocycle control of cooling water systems |
| 11/08/2001 | US20010037963 Artificial spa generator |
| 11/08/2001 | CA2402982A1 Autocycle control of cooling water systems |
| 11/07/2001 | EP1151968A2 Method of utilizing waste waters produced by water purification processing |
| 11/07/2001 | EP1150923A1 Method for removing deposits from water transmission systems and devices for supplying water |
| 11/07/2001 | CN1074419C Polyamine compounds contg. phosphonic, sulfonic and carboxylic radicals and their preparing process |
| 11/06/2001 | US6312644 Antiscaling agents |
| 11/01/2001 | WO2001081654A1 Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems |
| 11/01/2001 | WO2000076922A3 Methods of preventing scaling involving inorganic compositions, and compositions therefor |
| 11/01/2001 | US20010035271 Process for the inhibition of scale |
| 10/31/2001 | EP1149055A1 Method and compositions for minimizing biological and colloidal fouling |
| 10/31/2001 | EP1149052A1 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse osmosis |
| 10/30/2001 | US6310024 Rust and scale removal composition and process |
| 10/30/2001 | US6309470 Deposit removal from drink water tanks with solution of disinfectant and sulfamic, citric, glycolic, phosphoric, and/or hydrochloric acid; rinsing |
| 10/25/2001 | WO2001079215A1 N?α, Nφ¿-DIALKYL AMINOMETHYLENEPHOSPHONIC ACIDS AND USE THEREOF |
| 10/25/2001 | WO2001079122A1 Sequestering |
| 10/25/2001 | US20010032823 On premise water treatment system and method |
| 10/25/2001 | CA2406382A1 Sequestering |
| 10/24/2001 | CN1318524A Efficient scour for water cooling heat exchanger system |
| 10/24/2001 | CN1073514C Method for decorating different pictures on external surface of refrigerator according to user's requirement |
| 10/23/2001 | US6306308 As a coagulant used to remove suspended solids and various impurities in most water treatment applications |