Douglas A. Schaffer
3Patents
3h-index
2Co-inventors
33Inventor score
Filing activity: Nov 4, 1983 → Dec 20, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4557617A | Tape supply cartridge | Performing Operations; Transporting | 115 | Expired |
| US4678353A | Tape supply cartridge | Performing Operations; Transporting | 94 | Expired |
| US4624590A | Lettering apparatus | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.