Friedhelm Sahlmen
6Patents
4h-index
7Co-inventors
46Inventor score
Filing activity: May 5, 1980 → Jan 16, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4988234A | Gulley closure | Fixed Constructions | 32 | Expired |
| US4735725A | Process for the improved separation of clarified liquid from biomass in the biological treatment of sewage | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4834003A | Combustion of aqueous sewage sludge by the fluidized bed process | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5000853A | Process for the improved separation of clarified liquid from biomass in the biological treatment of sewage | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4287069A | Process for the improved working up of effluent | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5174985A | Process for the oxidation of water-insoluble organic compounds | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.