David Johnston
8Patents
6h-index
10Co-inventors
60Inventor score
Filing activity: Dec 4, 1980 → Nov 28, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9039016B2 | Accessory cart | Performing Operations; Transporting | 41 | Active |
| US10159337B2 | Accessory cart | Performing Operations; Transporting | 15 | Active |
| US4343485A | Reverse camber ski | Human Necessities | 13 | Expired |
| US9775431B2 | Accessory cart | Performing Operations; Transporting | 10 | Active |
| US5302055A | Signalling device | Physics | 10 | Expired |
| US8382309B1 | Light pod system | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US10299582B2 | Accessory cart | Performing Operations; Transporting | 1 | Active |
| US7650750B2 | Domestic combined heat and power assembly | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.