Michael Markham
4Patents
3h-index
8Co-inventors
47Inventor score
Filing activity: Oct 14, 1975 → Jul 29, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4176610A | Safe deposit apparatus | Fixed Constructions | 21 | Expired |
| US4266488A | Relocking device for safes and the like | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7715032B2 | Bulk communications process using multiple delivery media | Electricity | 4 | Active |
| US4004252A | Safe deposit apparatus, with selective plate and shield for dual function depository | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.