John MacGregor
4Patents
3h-index
2Co-inventors
44Inventor score
Filing activity: Jul 21, 1981 → May 17, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4846504A | Secure on-pack promotional coupons | Physics | 116 | Expired |
| US4398414A | Electrical friction sleeve cone penetrometer | Physics | 10 | Expired |
| US7964817B2 | Electrical discharge machine apparatus for reverse taper bores | Performing Operations; Transporting | 5 | Active |
| US7019247B1 | Electrical discharge machine apparatus with piezo-electric head | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.