Joan Sprague
3Patents
3h-index
1Co-inventors
33Inventor score
Filing activity: Oct 24, 1984 → Mar 16, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4650423A | Method of teaching and transcribing of language through the use of a periodic code of language elements | Physics | 18 | Expired |
| US4768959A | Method of teaching and transcribing of language through the use of a periodic code of language elements | Physics | 11 | Expired |
| US4795349A | Coded font keyboard apparatus | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.