Roger D. Shepherd
5Patents
5h-index
11Co-inventors
52Inventor score
Filing activity: Jul 9, 1979 → Apr 29, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4273439A | Document feeder system having a suspending/commencing mode with a judgment decision capability | Physics | 30 | Expired |
| US4835573A | Machine control system utilizing paper parameter measurements | Physics | 28 | Expired |
| US4297025A | Document feeder system having a suspending/commencing mode | Physics | 20 | Expired |
| US4730823A | Adaptive document feed pick mechanism | Performing Operations; Transporting | 6 | Expired |
| US4711552A | Synchronizing electrostatic copy formation | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.