Stefan SPERRFECHTER
4Patents
2h-index
12Co-inventors
37Inventor score
Filing activity: Feb 6, 2014 → Jul 27, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8991576B2 | Torque converter device for a motor vehicle | Emerging Cross-Sectional Technologies | 4 | Active |
| US11293526B2 | Hybrid dual-clutch transmission | Emerging Cross-Sectional Technologies | 4 | Active |
| US11268579B2 | Hybrid dual-clutch transmission | Emerging Cross-Sectional Technologies | 1 | Active |
| US12097766B2 | Dual-clutch transmission | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.