Donald L. Rolph
5Patents
5h-index
3Co-inventors
52Inventor score
Filing activity: Sep 2, 1977 → Jul 3, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4965685A | Removable cartridge disc drive with radial arm voice coil actuator | Physics | 72 | Expired |
| US4870518A | Removable cartridge disc drive with radial arm voice coil actuator | Physics | 49 | Expired |
| US4864452A | Removable cartridge with lockable access door | Physics | 47 | Expired |
| US4125883A | Apparatus for centering and clamping a flexible magnetic recording disc | Physics | 45 | Expired |
| US4179718A | Flexible magnetic recording disc drive with interlock to protect recording disc cartridge | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.