John M. Copper
4Patents
4h-index
3Co-inventors
39Inventor score
Filing activity: Oct 4, 1991 → Jan 16, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5485171A | Hand held computer input apparatus and method | Physics | 218 | Expired |
| USD340042S | Handheld computer pointing device | General | 149 | Expired |
| US5640152A | Hand held computer input apparatus and method | Physics | 120 | Expired |
| USD349491S | Handheld input device for computers | General | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.