Winfried Helm
5Patents
5h-index
4Co-inventors
45Inventor score
Filing activity: Jun 23, 1986 → Jun 14, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4955744A | Clamping fixture for axially clamping a tool in place, in particular a disc | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US5005321A | Protective hood for grinding machines, particularly angle grinders, and suitable fastening receptacle for the latter | Performing Operations; Transporting | 43 | Expired |
| US4980994A | Clamping fixture for detachably particular a disc | Physics | 18 | Expired |
| US4901479A | Portable hand machine tool, particularly angle gringer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4973807A | Actuation device for a switch particularly for a hand machine tool | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.