CLEAN WATER SERVICES
5Patents
4Active
5Granted
41Portfolio score
Filing activity: Dec 5, 2000 → Oct 24, 2018 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7604740B2 | Waste activated sludge stripping to remove internal phosphorus | Emerging Cross-Sectional Technologies | 15 | Active |
| US6387264B1 | Unified fermentation and thickening process | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8496827B2 | Waste activated sludge phosphorus and magnesium stripping process and struvite production system | Emerging Cross-Sectional Technologies | 4 | Active |
| US10604433B2 | Emancipative waste activated sludge stripping to remove internal phosphorus (“eWASSTRIP”) | Chemistry; Metallurgy | 1 | Active |
| US10807885B1 | Low energy nitrogen removal wetland technology | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.