Robert L. Duffin
5Patents
4h-index
7Co-inventors
50Inventor score
Filing activity: Sep 29, 1989 → Aug 4, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4970176A | Multiple step metallization process | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5049811A | Measuring integrity of semiconductor multi-layer metal structures | Physics | 24 | Expired |
| US9591882B2 | Absorbent sleeve | Human Necessities | 9 | Active |
| US5554889A | Structure and method for metallization of semiconductor devices | Electricity | 8 | Expired |
| US5700721A | Structure and method for metallization of semiconductor devices | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.