David Duff
3Patents
3h-index
4Co-inventors
43Inventor score
Filing activity: Jun 2, 1981 → Oct 14, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6203173A | Lighting assembly having above water and underwater operational capabilities | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US5705928A | Sample delivery system used in chemical analysis methods which employs pressurized gas for sample conveyance | Physics | 13 | Expired |
| US4398312A | Sofa bed overdeck assembly | Human Necessities | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.