Frank S. Knoll
14Patents
7h-index
13Co-inventors
63Inventor score
Filing activity: Jun 4, 1974 → Nov 24, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4247390A | Method of separating vermiculite from the associated gangue | Performing Operations; Transporting | 28 | Expired |
| US3970546A | Method and apparatus for separating non-ferrous metal from waste material | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4031004A | Feed system for an electromagnetic eddy current materials separator | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4305797A | Material separation by dielectrophoresis | Performing Operations; Transporting | 16 | Expired |
| US4363723A | Multifield electrostatic separator | Performing Operations; Transporting | 14 | Expired |
| US4251353A | Method of treating refuse to separate valuable constituents | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5452805A | Spiral separator | Performing Operations; Transporting | 9 | Expired |
| US6062393A | Process and apparatus for separating particles of different magnetic susceptibilities | Performing Operations; Transporting | 6 | Expired |
| US5098558A | Adjustable feed accelerator for particle separator | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4849099A | Particle feeding apparatus | Performing Operations; Transporting | 3 | Expired |
| US4421148A | Device for feeding particulate material | Performing Operations; Transporting | 2 | Expired |
| US6336559B1 | Spiral separator with replaceable trough sections | Performing Operations; Transporting | 2 | Expired |
| USD255580S | Magnetic separator for particulate materials | General | 1 | Expired |
| USD255579S | Magnetic separator for particulate materials | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.