Norbert Koeppel
4Patents
4h-index
4Co-inventors
36Inventor score
Filing activity: Mar 24, 1999 → Jun 4, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6539826B2 | Screwing element | Performing Operations; Transporting | 74 | Expired |
| US6361259B1 | Screw for torque-limited fastening | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6240811A | Screwing element | Performing Operations; Transporting | 9 | Expired |
| US6626627B2 | Screw with tamper-proof head | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.