Robert Frank Stephenson
3Patents
3h-index
4Co-inventors
39Inventor score
Filing activity: Aug 21, 1975 → Mar 26, 1982
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3994749A | Vent valve for nickel-cadmium energy cells | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4414303A | Cadmium negative electrode | Emerging Cross-Sectional Technologies | 6 | Expired |
| US3986893A | Method for making nickel and cadmium electrodes for batteries | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.