Manfred Hellbach
8Patents
5h-index
16Co-inventors
56Inventor score
Filing activity: Jan 29, 1991 → Jun 2, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5996707A | Hand power tool | Performing Operations; Transporting | 77 | Expired |
| US5111890A | Hammer drill | Performing Operations; Transporting | 48 | Expired |
| US6464234B2 | Machine tool, especially a hammer drill or chisel | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7287601B2 | Power tool with a rotating and/or hammering drive mechanism | Performing Operations; Transporting | 19 | Expired |
| US6527280B2 | Hand held power tool | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6918728B1 | Circlip | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7214010B2 | Tool bit holder and hand power tool | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7527272B2 | Chuck | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.