Rolf Johannessen
3Patents
2h-index
9Co-inventors
41Inventor score
Filing activity: Oct 22, 1980 → Feb 16, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8659212B2 | Ultrasound transducer and method for manufacturing an ultrasound transducer | Emerging Cross-Sectional Technologies | 14 | Active |
| USD377680S | Toilet ventilator | General | 5 | Expired |
| US4385299A | Apparatus for transmitting bearing information | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.