Rolf Helber
4Patents
3h-index
11Co-inventors
47Inventor score
Filing activity: Nov 16, 1987 → Apr 14, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4852533A | Mounting arrangement for vehicle engine and the like | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6932189B2 | Device for noise structuring in a motor vehicle | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US7616767B2 | Method and device for determining acoustical transfer impedance | Electricity | 4 | Expired |
| USD419740S | Cart | General | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.