Frank Johnsen
2Patents
1h-index
8Co-inventors
41Inventor score
Filing activity: Sep 24, 1974 → Jun 29, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3971509A | Centrifuge comprising an outer drum and an inner rotor provided with a conveyor screw | Performing Operations; Transporting | 15 | Expired |
| US12326081B2 | Tagging assembly including a sacrificial stop component | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.