Helmut Ruff
2Patents
2h-index
3Co-inventors
37Inventor score
Filing activity: Oct 5, 1977 → Jun 7, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5533594A | Chairlift with positioning carriage and swivel mechanism with safety interlock | Performing Operations; Transporting | 35 | Expired |
| US4169652A | Method and apparatus for connecting electrical conductors | Electricity | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.