John P. Simpson
8Patents
7h-index
9Co-inventors
56Inventor score
Filing activity: Jan 19, 1978 → Oct 4, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4764848A | Surface mounted array strain relief device | Emerging Cross-Sectional Technologies | 64 | Expired |
| US6578089B1 | Multi-computer access secure switching system | Physics | 24 | Expired |
| US4160549A | Tennis serve training and practice device | Human Necessities | 24 | Expired |
| US4214751A | Adjustable bunting bat with protective shield | Human Necessities | 16 | Expired |
| US4869418A | Solder leveling method and apparatus | Electricity | 11 | Expired |
| US4589720A | Planar electronic filter element and a connector embodying such a filter | Electricity | 11 | Expired |
| US4799616A | Solder leveling method and apparatus | Electricity | 8 | Expired |
| US7770628B2 | Control of casting machine | Performing Operations; Transporting | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.