John Andrew Johnston
3Patents
2h-index
3Co-inventors
41Inventor score
Filing activity: Nov 1, 1989 → Feb 27, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5055188A | Magnetic apparatus for controlling Protista in distillates | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US9618491B1 | Gas discriminating semiconductor sensors | Physics | 2 | Active |
| US8972204B2 | Gas discriminating semiconductor sensors | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.