Douglas Johns
2Patents
1h-index
3Co-inventors
30Inventor score
Filing activity: Jan 8, 2003 → Dec 14, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7677210B2 | Rotating barrel type internal combustion engine | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7210429B2 | Rotating positive displacement engine | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.