John Harper
6Patents
4h-index
8Co-inventors
50Inventor score
Filing activity: Mar 1, 1990 → Mar 25, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5325842A | Dual mode downdraft gas range | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US7040494B2 | Stock shelving system | Human Necessities | 29 | Expired |
| US8464452B2 | Firearm maintenance system | Mechanical Engineering; Lighting; Heating | 19 | Active |
| US5000157A | Heater for cooking apparatus | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US10970722B2 | Method, systems, and computer-readable storage media for real-time event management system for mobile devices | Electricity | 0 | Active |
| US11694210B2 | Systems and non-transitory computer-readable storage media for real-time event management system for mobile devices | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.