John E. Oltman
3Patents
3h-index
9Co-inventors
39Inventor score
Filing activity: Mar 13, 2000 → Jun 30, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7010137B1 | Hearing aid | Electricity | 227 | Expired |
| US7536023B2 | Hearing aid | Electricity | 21 | Expired |
| US7987977B2 | Hearing aid package | Electricity | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.