Frederick A. Vitringa
2Patents
2h-index
1Co-inventors
24Inventor score
Filing activity: Nov 30, 1984 → Nov 30, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4623991A | Delta-shaped geophone spring | Physics | 27 | Expired |
| US4685094A | Lateral compliance device for geophone springs | Physics | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.