Assignee
KURITA WATER IND LTD
JP·252 granted patents·162 pending applications·2,716 citations·filing 1974–2023
Top patents by PatentIndex Score
414 records- 0197US4209398AWater treating processKURITA WATER IND LTD·Filed 1978·Granted Jun 24, 1980·124 cites·21 claims
- 0296US6379518B1Electrodeionization apparatus and pure water producing apparatusKURITA WATER IND LTD·Filed 2000·Granted Apr 30, 2002·78 cites·19 claims
- 0393US6706185B2Biological method of phosphorus removal and biological phosphorus-removing apparatusKURITA WATER IND LTD·Filed 2002·Granted Mar 16, 2004·97 cites·37 claims
- 0493US6464867B1Apparatus for producing water containing dissolved ozoneKURITA WATER IND LTD·Filed 2000·Granted Oct 15, 2002·65 cites·22 claims
- 0590USD860387SVessel for a solid water treatment agentKURITA WATER IND LTD·Filed 2017·Granted Sep 17, 2019·8 cites·1 claims
- 0690US10046280B2Method for improving rejection rate of reverse osmosis membraneKURITA WATER IND LTD·Filed 2013·Granted Aug 14, 2018·10 cites·13 claims
- 0790US6461512B1Method of disinfecting a deionized water producing apparatus and method of producing deionized waterKURITA WATER IND LTD·Filed 2000·Granted Oct 8, 2002·47 cites·6 claims
- 0888USD774533SDisplay screen with graphical user interfaceKURITA WATER IND LTD·Filed 2015·Granted Dec 20, 2016·47 cites·1 claims
- 0988US5647989AMethod for recovering abrasive particlesKURITA WATER IND LTD·Filed 1995·Granted Jul 15, 1997·98 cites·6 claims
- 1087US5043072AMethod of treating fluoride-containing waterKURITA WATER IND LTD·Filed 1990·Granted Aug 27, 1991·99 cites·9 claims
- 1186USD774534SDisplay screen with graphical user interfaceKURITA WATER IND LTD·Filed 2015·Granted Dec 20, 2016·40 cites·1 claims
- 1286US6344122B1Electrodeionization apparatusKURITA WATER IND LTD·Filed 2000·Granted Feb 5, 2002·45 cites·24 claims
- 1386US6077418ACorrosion monitoringKURITA WATER IND LTD·Filed 1998·Granted Jun 20, 2000·83 cites·14 claims
- 1484US11053144B2Ballast water measurement device and ballast water measurement methodKURITA WATER IND LTD·Filed 2017·Granted Jul 6, 2021·3 cites·6 claims
- 1584US6733646B2Method and apparatus for electrodeionization of waterKURITA WATER IND LTD·Filed 2001·Granted May 11, 2004·31 cites·22 claims
- 1684US6450181B1Cleaning solution for electronic materials and method for using sameKURITA WATER IND LTD·Filed 2000·Granted Sep 17, 2002·27 cites·19 claims
- 1784US4382864AProcess for dewatering sludgesKURITA WATER IND LTD·Filed 1981·Granted May 10, 1983·53 cites·11 claims
- 1883US4834881ASpiral wound type membrane moduleKURITA WATER IND LTD·Filed 1988·Granted May 30, 1989·65 cites·18 claims
- 1982US11339065B2Apparatus for producing aqueous pH- and redox potential-adjusting solutionKURITA WATER IND LTD·Filed 2017·Granted May 24, 2022·3 cites·4 claims
- 2082US6402920B1Concentrating compartment and spacer construction for electrodeionization apparatusKURITA WATER IND LTD·Filed 2000·Granted Jun 11, 2002·36 cites·10 claims
- 2182US4656059AWet spray booth treating agent and method for treatment therewithKURITA WATER IND LTD·Filed 1985·Granted Apr 7, 1987·60 cites·13 claims
- 2281US11325851B2Diluted chemical liquid production apparatus capable of controlling pH and oxidation-reduction potentialKURITA WATER IND LTD·Filed 2017·Granted May 10, 2022·3 cites·4 claims
- 2380US7329312B2Apparatus for supplying water containing dissolved gasKURITA WATER IND LTD·Filed 2007·Granted Feb 12, 2008·9 cites·18 claims
- 2480US5474989ADrug compositionKURITA WATER IND LTD·Filed 1994·Granted Dec 12, 1995·62 cites·10 claims
- 2580US5079000AClathrate composition including essential oils and method of using sameKURITA WATER IND LTD·Filed 1989·Granted Jan 7, 1992·36 cites·5 claims
- 2679US8038799B2Substrate processing apparatus and substrate processing methodKURITA WATER IND LTD·Filed 2007·Granted Oct 18, 2011·6 cites·3 claims
- 2779US6368552B1Water treating agent and water treating methodKURITA WATER IND LTD·Filed 2000·Granted Apr 9, 2002·16 cites·20 claims
- 2879US6159999AAntimicrobial and antiseptic methods using antimicrobial compositionKURITA WATER IND LTD·Filed 1998·Granted Dec 12, 2000·25 cites·40 claims
- 2979US4479879AProcess for dewatering sludgesKURITA WATER IND LTD·Filed 1983·Granted Oct 30, 1984·43 cites·6 claims
- 3078US10759678B2Dilute chemical solution producing apparatus and dilute chemical solution producing methodKURITA WATER IND LTD·Filed 2017·Granted Sep 1, 2020·3 cites·6 claims
- 3178US10138149B2Ultrapure water production system, ultrapure water production feed system, and method for cleaning thereofKURITA WATER IND LTD·Filed 2014·Granted Nov 27, 2018·3 cites·12 claims
- 3277US11069542B2Cleaning water supply deviceKURITA WATER IND LTD·Filed 2018·Granted Jul 20, 2021·2 cites·10 claims
- 3377US7955503B2Pure water producing apparatusKURITA WATER IND LTD·Filed 2006·Granted Jun 7, 2011·12 cites·3 claims
- 3477US5736097AMethod of preventing pitting corrosionKURITA WATER IND LTD·Filed 1997·Granted Apr 7, 1998·31 cites·6 claims
- 3575US9791427B2System and method for calculating concentration of water treatment chemicalKURITA WATER IND LTD·Filed 2014·Granted Oct 17, 2017·2 cites·20 claims
- 3675US4644021ASustained release antimicrobial agents and methods of fouling control using the sameKURITA WATER IND LTD·Filed 1985·Granted Feb 17, 1987·17 cites·12 claims
- 3775US4022639AMethod for removing carbon scaleKURITA WATER IND LTD·Filed 1975·Granted May 10, 1977·16 cites·12 claims
- 3874US11104594B2Ammonia solution production device and ammonia solution production methodKURITA WATER IND LTD·Filed 2017·Granted Aug 31, 2021·1 cites·4 claims
- 3974US10249505B2Method for treating etching solutionKURITA WATER IND LTD·Filed 2015·Granted Apr 2, 2019·3 cites·20 claims
- 4074US6132627ATreatment method for water containing nitrogen compoundsKURITA WATER IND LTD·Filed 1997·Granted Oct 17, 2000·39 cites·14 claims
- 4173US10597308B2Water treatment plant controlling method and controlling program, and water treatment systemKURITA WATER IND LTD·Filed 2013·Granted Mar 24, 2020·3 cites·8 claims
- 4273US5169535AMethod of removing endotoxinKURITA WATER IND LTD·Filed 1990·Granted Dec 8, 1992·34 cites·10 claims
- 4373US4975542AMethod for preparing granular porous chitosanKURITA WATER IND LTD·Filed 1989·Granted Dec 4, 1990·19 cites·17 claims
- 4472US10307713B2Agent and method for cleaning permeable membranesKURITA WATER IND LTD·Filed 2013·Granted Jun 4, 2019·1 cites·12 claims
- 4572US10179743B2Device and method for controlling chemical injection into boilerKURITA WATER IND LTD·Filed 2015·Granted Jan 15, 2019·2 cites·2 claims
- 4672US7133852B2Electricity generation equipment management systemKURITA WATER IND LTD·Filed 2001·Granted Nov 7, 2006·10 cites·17 claims
- 4772US6429220B1Antibacterial compositionsKURITA WATER IND LTD·Filed 1999·Granted Aug 6, 2002·23 cites·21 claims
- 4872US4221661AMethod of dehydrating organic sludgeKURITA WATER IND LTD·Filed 1978·Granted Sep 9, 1980·34 cites·5 claims
- 4971US8025159B2Agent for increasing rejection with a permeable membrane, process for increasing the rejection, permeable membrane and process for water treatmentKURITA WATER IND LTD·Filed 2005·Granted Sep 27, 2011·5 cites·12 claims
- 5071US7329352B2Nitrifying method of treating water containing ammonium-nitrogenKURITA WATER IND LTD·Filed 2006·Granted Feb 12, 2008·4 cites·13 claims
Showing the top 50 of 414 patent records by PatentIndex Score.
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