Hampton Roads Sanitation District
12Patents
11Active
12Granted
58Portfolio score
Filing activity: Jul 2, 2002 → Mar 14, 2022
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9242882B2 | Method and apparatus for wastewater treatment using gravimetric selection | Emerging Cross-Sectional Technologies | 10 | Active |
| US9469558B2 | Method and apparatus for maximizing nitrogen removal from wastewater | Emerging Cross-Sectional Technologies | 5 | Active |
| US6925895B2 | Sample collection system | Physics | 4 | Expired |
| US10112856B2 | Method and apparatus for wastewater treatment using gravimetric selection | Emerging Cross-Sectional Technologies | 2 | Active |
| US9346694B2 | Method and apparatus for nitrogen removal in wastewater treatment | Emerging Cross-Sectional Technologies | 2 | Active |
| US11999641B2 | Method and apparatus for multi-deselection in wastewater treatment | Emerging Cross-Sectional Technologies | 0 | Active |
| US9340439B2 | Method and apparatus for nitrogen removal in wastewater treatment | Chemistry; Metallurgy | 0 | Active |
| US12221369B2 | Method and apparatus for nutrient removal using anoxic biofilms | Emerging Cross-Sectional Technologies | 0 | Active |
| US10005683B2 | Method and apparatus for nitrogen removal in wastewater treatment | Emerging Cross-Sectional Technologies | 0 | Active |
| US9352990B2 | Method and apparatus for maximizing nitrogen removal from wastewater | Emerging Cross-Sectional Technologies | 0 | Active |
| US9902635B2 | Method for deammonification process control using pH, specific conductivity, or ammonia | Emerging Cross-Sectional Technologies | 0 | Active |
| US9068335B2 | Valve operating nut protector | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.