Frederick M. Riser
5Patents
3h-index
7Co-inventors
50Inventor score
Filing activity: May 8, 1987 → Feb 22, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4869818A | Orbital wastewater treatment system with combined surface aerator and submerged impeller | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4940545A | Aerobic waste sludge digester-thickener orbital system and method | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8057674B1 | Orbital wastewater treatment system and method of operating same | Emerging Cross-Sectional Technologies | 4 | Active |
| US7186332B2 | Orbital wastewater treatment system with combined surface aerator and submerged impeller | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8318016B1 | Orbital wastewater treatment system, method of operating same, and kit for modifying an orbital wastewater treatment system | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.