Assignee
METAWATER CO LTD
JP·33 granted patents·15 pending applications·53 citations·filing 2007–2025
Top patents by PatentIndex Score
48 records- 0192US9737896B2Screw conveyor type separation apparatus and wastewater treatment systemMETAWATER CO LTD·Filed 2016·Granted Aug 22, 2017·7 cites·11 claims
- 0281US9522832B2Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control methodMETAWATER CO LTD·Filed 2014·Granted Dec 20, 2016·4 cites·18 claims
- 0381US7875179B2Side stream type membrane bioreactor processMETAWATER CO LTD·Filed 2010·Granted Jan 25, 2011·5 cites·7 claims
- 0477US11655175B2Screw type separation device and wastewater treatment systemMETAWATER CO LTD·Filed 2017·Granted May 23, 2023·3 cites·15 claims
- 0574US10800673B2Water treatment apparatus with dry gas flowMETAWATER CO LTD·Filed 2017·Granted Oct 13, 2020·1 cites·5 claims
- 0674US7973199B2Process for producing acetone from bioethanolMETAWATER CO LTD·Filed 2010·Granted Jul 5, 2011·4 cites·4 claims
- 0773US9023654B2Method and apparatus for measuring bromate ionsMETAWATER CO LTD·Filed 2014·Granted May 5, 2015·4 cites·2 claims
- 0873US2024371592A1Ozone-generating apparatusMETAWATER CO LTD·Filed 2024·Application pending·0 cites
- 0973US2024367972A1Ozone-generating apparatus and movement-inhibiting methodMETAWATER CO LTD·Filed 2024·Application pending·0 cites
- 1071US9302923B2Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control methodMETAWATER CO LTD·Filed 2014·Granted Apr 5, 2016·2 cites·18 claims
- 1171US2025312746A1Membrane filtration systemMETAWATER CO LTD·Filed 2025·Application pending·0 cites
- 1268US10035720B2Sludge condensing machineMETAWATER CO LTD·Filed 2014·Granted Jul 31, 2018·2 cites·8 claims
- 1368US8012759B2Method and apparatus for determination of coagulant injection rate in water treatment processMETAWATER CO LTD·Filed 2008·Granted Sep 6, 2011·2 cites·8 claims
- 1468US2024150211A1Digestion system and heating control methodMETAWATER CO LTD·Filed 2024·Application pending·0 cites
- 1566US10322958B2Sludge dewatering systemMETAWATER CO LTD·Filed 2015·Granted Jun 18, 2019·1 cites·21 claims
- 1666USD775712SFilter housing for use in a microbial water samplerMETAWATER CO LTD·Filed 2015·Granted Jan 3, 2017·12 cites·1 claims
- 1765US7922904B2Upward-flow manganese contact columnMETAWATER CO LTD·Filed 2007·Granted Apr 12, 2011·2 cites·8 claims
- 1864US12378143B2Water treatment system, water treatment method, and recording mediumMETAWATER CO LTD·Filed 2022·Granted Aug 5, 2025·0 cites·15 claims
- 1963US2025033095A1Method for cleaning organic waste water treatment apparatusMETAWATER CO LTD·Filed 2024·Application pending·0 cites
- 2062US2024308890A1Biological treatment method and biological treatment systemMETAWATER CO LTD·Filed 2024·Application pending·0 cites
- 2162US2025197264A1Wastewater treatment apparatus and wastewater treatment methodMETAWATER CO LTD·Filed 2023·Application pending·0 cites
- 2258US12059636B2Mixing/clarifying deviceMETAWATER CO LTD·Filed 2020·Granted Aug 13, 2024·0 cites·3 claims
- 2356US12357949B2Cleaning method of membrane filtration system and membrane filtration systemMETAWATER CO LTD·Filed 2020·Granted Jul 15, 2025·0 cites·7 claims
- 2455US9868091B2Transverse-mounted membrane filtration apparatusMETAWATER CO LTD·Filed 2014·Granted Jan 16, 2018·1 cites·5 claims
- 2554US11821783B2Information processing system, information processing apparatus, program, and information processing methodMETAWATER CO LTD·Filed 2019·Granted Nov 21, 2023·0 cites·9 claims
- 2653US2023107168A1Separation deviceMETAWATER CO LTD·Filed 2021·Application pending·0 cites
- 2752US11597667B2Wastewater treatment system, air supply amount control device, and air supply amount control methodMETAWATER CO LTD·Filed 2019·Granted Mar 7, 2023·0 cites·8 claims
- 2850US10358365B2Distributor pipe and trickling filterMETAWATER CO LTD·Filed 2016·Granted Jul 23, 2019·1 cites·14 claims
- 2949US11459248B2Method of removing soluble manganeseMETAWATER CO LTD·Filed 2018·Granted Oct 4, 2022·0 cites·2 claims
- 3049US10773981B2Sewage treatment system having a trickling filter with wash unitMETAWATER CO LTD·Filed 2013·Granted Sep 15, 2020·0 cites·9 claims
- 3149US2010084338A1Method and apparatus for treating ballast waterMETAWATER CO LTD·Filed 2008·Application pending·0 cites
- 3248US2022234933A1Screw-type separation device, casing, wastewater treatment system, and cleaning method of screw-type separation deviceMETAWATER CO LTD·Filed 2020·Application pending·0 cites
- 3347US12132414B2Power supply, control program, and control methodMETAWATER CO LTD·Filed 2020·Granted Oct 29, 2024·0 cites·7 claims
- 3445US11320356B2Method for estimating number of microparticles in sampleMETAWATER CO LTD·Filed 2017·Granted May 3, 2022·0 cites·6 claims
- 3545US11142469B2Water treatment apparatusMETAWATER CO LTD·Filed 2017·Granted Oct 12, 2021·0 cites·7 claims
- 3643US11174181B2Accelerated oxidation treatment method and accelerated oxidation treatment deviceMETAWATER CO LTD·Filed 2017·Granted Nov 16, 2021·0 cites·13 claims
- 3740US11331626B2Membrane filtration methodMETAWATER CO LTD·Filed 2019·Granted May 17, 2022·0 cites·3 claims
- 3840US10850214B2Inclined sedimentation acceleration apparatusMETAWATER CO LTD·Filed 2018·Granted Dec 1, 2020·0 cites·17 claims
- 3940US10723646B2Organic wastewater treatment method and organic wastewater treatment deviceMETAWATER CO LTD·Filed 2017·Granted Jul 28, 2020·0 cites·10 claims
- 4040US10000403B2Organic-waste-processing apparatus, processing method, and control apparatusMETAWATER CO LTD·Filed 2014·Granted Jun 19, 2018·0 cites·9 claims
- 4140US2010326912A1Process for producing reclaimed waterMETAWATER CO LTD·Filed 2010·Application pending·0 cites
- 4240US2011259807A1Filtering and condensing apparatus of suction typeMETAWATER CO LTD·Filed 2009·Application pending·0 cites
- 4340US2011233131A1Filtering and condensing apparatus of suction typeMETAWATER CO LTD·Filed 2009·Application pending·0 cites
- 4439US2023173778A1Separation deviceMETAWATER CO LTD·Filed 2021·Application pending·0 cites
- 4538US10351447B2Water treatment systemMETAWATER CO LTD·Filed 2016·Granted Jul 16, 2019·0 cites·17 claims
- 4636USD780886SFilter housing case for use in a microbial water samplerMETAWATER CO LTD·Filed 2015·Granted Mar 7, 2017·2 cites·1 claims
- 4735US2019381478A1Activated carbon slurry supply methodMETAWATER CO LTD·Filed 2018·Application pending·0 cites
- 4826US9857304B2Measuring method and measuring system of bromate ion concentrationMETAWATER CO LTD·Filed 2017·Granted Jan 2, 2018·0 cites·8 claims
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