Friedhelm John
6Patents
5h-index
12Co-inventors
56Inventor score
Filing activity: Sep 17, 1992 → Feb 9, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5376049A | Tripod joint | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6299544A | Double offset joint with centering means for cage | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5660494A | Connection for the harmonic transmission of torque | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6319133A | Constant velocity universal joint | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7677981B2 | Sealed joint assembly | Emerging Cross-Sectional Technologies | 6 | Active |
| USRE36163E | Tripod joint | General | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.