Rolf Strothmann
18Patents
5h-index
2Co-inventors
56Inventor score
Filing activity: Apr 18, 1983 → Jan 3, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5540296A | Electric auxiliary drive for a travelling device primarily driven, in particular drawn or pushed, by human or animal power | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6242822A | Electric machine | Electricity | 22 | Expired |
| US4539439A | Plugs, receptacles and hearing aids | Electricity | 21 | Expired |
| US6545437B1 | Control for a muscle or motor-powered drive | Performing Operations; Transporting | 7 | Expired |
| US6366037B1 | Separately excited electric machine | Electricity | 5 | Expired |
| US6415880B1 | Transportation system | Performing Operations; Transporting | 4 | Expired |
| US9714046B2 | Device, in particular vehicle, intended to be moved by muscle force | Emerging Cross-Sectional Technologies | 2 | Active |
| US9540069B2 | Vehicle, particularly a bicycle, comprising an electrical auxiliary drive | Performing Operations; Transporting | 1 | Active |
| US8604779B2 | Position determination of an electric drive having two stators and two rotors | Electricity | 1 | Active |
| US8757012B2 | Torque sensor | Physics | 1 | Active |
| US8222847B2 | Device and method for determining the rotational position of a rotor in an electric machine | Electricity | 1 | Active |
| US7984922B2 | Carrier frame for a manually movable caddie, in particular a golf caddie | Performing Operations; Transporting | 1 | Active |
| US9140535B2 | Position sensor and/or force sensor | Physics | 0 | Active |
| US10161735B2 | Apparatus for determining the angular position of the rotor of an electric machine | Electricity | 0 | Active |
| US9212894B2 | Apparatus for determining the position of the rotor of an electrical machine | Electricity | 0 | Active |
| US9459122B2 | Method for determining the position of the rotor of an electrical machine | Electricity | 0 | Active |
| US9656636B2 | Drive | Performing Operations; Transporting | 0 | Active |
| US9257924B2 | Method for determining the rotary position of the rotor of an electric machine | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.