METAWATER Co., Ltd.
47Patents
47Active
47Granted
54Portfolio score
Filing activity: May 13, 2005 → Apr 6, 2022 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD775712S1 | Filter housing for use in a microbial water sampler | General | 11 | Active |
| US7875179B2 | Side stream type membrane bioreactor process | Emerging Cross-Sectional Technologies | 5 | Active |
| US9028695B2 | Process for producing reclaimed water and system for producing reclaimed water | Chemistry; Metallurgy | 4 | Active |
| US10407317B2 | Floating filter media filtration system with backwash | Chemistry; Metallurgy | 4 | Active |
| US9737896B2 | Screw conveyor type separation apparatus and wastewater treatment system | Chemistry; Metallurgy | 3 | Active |
| US8303893B2 | Apparatus for determining coagulant amount | Emerging Cross-Sectional Technologies | 3 | Active |
| US7973199B2 | Process for producing acetone from bioethanol | Performing Operations; Transporting | 2 | Active |
| US10669167B2 | Water treatment device and water treatment method | Emerging Cross-Sectional Technologies | 2 | Active |
| USD780886S1 | Filter housing case for use in a microbial water sampler | General | 2 | Active |
| US9522832B2 | Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control method | Emerging Cross-Sectional Technologies | 2 | Active |
| US8641904B2 | Method for membrane backwashing and backwashing apparatus | Performing Operations; Transporting | 2 | Active |
| US8246830B2 | Method and device for removing biological nitrogen and support therefor | Emerging Cross-Sectional Technologies | 2 | Active |
| US8192708B2 | Method of removing N2O from waste gas | Emerging Cross-Sectional Technologies | 1 | Active |
| US10322958B2 | Sludge dewatering system | Chemistry; Metallurgy | 1 | Active |
| US9868091B2 | Transverse-mounted membrane filtration apparatus | Emerging Cross-Sectional Technologies | 1 | Active |
| US8318020B2 | Washing method and apparatus of separation membrane | Emerging Cross-Sectional Technologies | 1 | Active |
| US10358365B2 | Distributor pipe and trickling filter | Emerging Cross-Sectional Technologies | 1 | Active |
| US9302923B2 | Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control method | Emerging Cross-Sectional Technologies | 1 | Active |
| US8012759B2 | Method and apparatus for determination of coagulant injection rate in water treatment process | Emerging Cross-Sectional Technologies | 1 | Active |
| US8540079B2 | Sludge filtration apparatus and filter assembly thereof | Chemistry; Metallurgy | 1 | Active |
| US8778691B2 | Bromate ion measurement method | Emerging Cross-Sectional Technologies | 1 | Active |
| US10035720B2 | Sludge condensing machine | Chemistry; Metallurgy | 1 | Active |
| US10800673B2 | Water treatment apparatus with dry gas flow | Chemistry; Metallurgy | 1 | Active |
| US11331626B2 | Membrane filtration method | Chemistry; Metallurgy | 0 | Active |
| US11597667B2 | Wastewater treatment system, air supply amount control device, and air supply amount control method | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.