David Hulbert
4Patents
3h-index
1Co-inventors
44Inventor score
Filing activity: Nov 26, 1990 → Jul 16, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5132024A | Hydro-cyclone underflow monitor based on underflow slurry stream shape | Performing Operations; Transporting | 10 | Expired |
| US5248442A | Method and apparatus for measuring shade of hydrocyclone underflow | Physics | 6 | Expired |
| US5575303A | Process for controlling a series of flotation cells | Emerging Cross-Sectional Technologies | 4 | Expired |
| US12135167B2 | Grain drying auger and drum with air holes | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.