W. Ralph Knowles
6Patents
6h-index
6Co-inventors
52Inventor score
Filing activity: Jul 30, 1993 → Mar 16, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5362964A | Environmental scanning electron microscope | Electricity | 43 | Expired |
| US5412211A | Environmental scanning electron microscope | Electricity | 42 | Expired |
| US6979822B1 | Charged particle beam system | Electricity | 28 | Expired |
| US5945672A | Gaseous backscattered electron detector for an environmental scanning electron microscope | Electricity | 25 | Expired |
| US5828064A | Field emission environmental scanning electron microscope | Electricity | 18 | Expired |
| US6025592A | High temperature specimen stage and detector for an environmental scanning electron microscope | Electricity | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.