David McGregor
6Patents
4h-index
6Co-inventors
50Inventor score
Filing activity: Aug 11, 1982 → Sep 25, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4810232A | Telescopic tripot universal joint | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4406640A | Drive axle assembly having limited torsional damper | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4516957A | Tripot joint with spider retainer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7742040B2 | Keypad | Electricity | 4 | Active |
| US8074874B2 | Secure payment system | Physics | 2 | Active |
| US7133029B2 | Keypad | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.