Engelbert Brunner
2Patents
2h-index
1Co-inventors
24Inventor score
Filing activity: Aug 5, 1983 → Aug 5, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4538934A | Automatic lead advancing mechanism for a mechanical pencil | Performing Operations; Transporting | 13 | Expired |
| US4809023A | Automatic pencil device for automatic drafting and writing machines | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.