John Ham
7Patents
2h-index
11Co-inventors
48Inventor score
Filing activity: Jun 10, 1977 → Jul 20, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4282583A | Microprogrammable processor control printer system | Performing Operations; Transporting | 32 | Expired |
| US4179732A | Microprogrammable processor control printer system | Performing Operations; Transporting | 26 | Expired |
| US4806031A | Uniform print density and registration in an impact printer | Performing Operations; Transporting | 2 | Expired |
| US8587825B2 | Ethernet and USB powered printers and methods for supplying ethernet and USB power to a printer | Physics | 1 | Active |
| US9747062B2 | Ethernet and USB powered printers and methods for supplying Ethernet and USB power to a printer | Physics | 0 | Active |
| US9189184B2 | Ethernet and USB powered printers and methods for supplying Ethernet and USB power to a printer | Physics | 0 | Active |
| US10241733B2 | Methods and apparatus for supplying power to a printer | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.