John Mackenzie
5Patents
2h-index
4Co-inventors
44Inventor score
Filing activity: Dec 20, 1978 → Jan 18, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4262838A | File folder assembly having removable cover | Performing Operations; Transporting | 30 | Expired |
| US5499372A | Method of controlling access to restricted access data and communication system therefor | Physics | 3 | Expired |
| US9169087B2 | System and method for proppant transfer | Fixed Constructions | 2 | Active |
| US10926024B2 | Emergency medical intervention device | Human Necessities | 2 | Active |
| US11806501B2 | Emergency medical intervention device | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.