David Hamm
5Patents
3h-index
3Co-inventors
50Inventor score
Filing activity: Jun 6, 2000 → Jun 21, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6557220B1 | Security clutch with self-centering spring | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6317941A | Security clutch | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6389662B1 | Security clutch with unitary trigger and spring | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD488087S1 | Security clutch with bent triggers | General | 2 | Expired |
| US10946965B2 | Gap accessary device for elevated roller rails | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.