John Macdonald
5Patents
4h-index
8Co-inventors
50Inventor score
Filing activity: Mar 18, 1987 → Dec 21, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5957813A | Finger exercise and rehabilitation device | Human Necessities | 12 | Expired |
| US4731176A | Control system for froth flotation processes | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD616980S1 | Therapy apparatus | General | 6 | Expired |
| USD644318S1 | Therapy apparatus | General | 5 | Expired |
| US11841540B2 | Optical apparatus, optical assembly and methods of manufacture thereof | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.