Inventor · disambiguated record
Joan Sprague
Also filed as: SPRAGUE JOAN
3 granted patents·79 citations·filing 1984–1987
74Inventor score
Technology areasG09B
Files withSPRAGUE ROBERT3
Top patents by PatentIndex Score
3 records- 0180US4650423AMethod of teaching and transcribing of language through the use of a periodic code of language elementsSPRAGUE ROBERT·Filed 1984·Granted Mar 17, 1987·37 cites·14 claims
- 0264US4768959AMethod of teaching and transcribing of language through the use of a periodic code of language elementsSPRAGUE ROBERT·Filed 1986·Granted Sep 6, 1988·27 cites·7 claims
- 0349US4795349ACoded font keyboard apparatusSPRAGUE ROBERT·Filed 1987·Granted Jan 3, 1989·15 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →