E. Douglas Ramsburg
2Patents
2h-index
7Co-inventors
27Inventor score
Filing activity: Jun 6, 1995 → Jun 6, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5650209A | Manufacture of telephone debit cards | Emerging Cross-Sectional Technologies | 107 | Expired |
| US5667247A | Telephone debit card production | Emerging Cross-Sectional Technologies | 49 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.