Ralph H. Ringstad
1Patents
1h-index
1Co-inventors
22Inventor score
Filing activity: Jan 23, 1980 → Jan 23, 1980
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4405867A | System for transferring a load between two power sources without interruption of power to the load | Electricity | 44 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.