Ernst Frei
2Patents
2h-index
1Co-inventors
30Inventor score
Filing activity: Dec 19, 1977 → May 9, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4780719A | Method of, and apparatus for, area and air space surveillance | Physics | 54 | Expired |
| US4160515A | Clothes hanger | Human Necessities | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.