Roland Ehmann
1Patents
1h-index
4Co-inventors
25Inventor score
Filing activity: Jan 17, 1979 → Jan 17, 1979
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4229147A | Rotary positive-displacement pump | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.