Inventor · disambiguated record
Frederick Sprague
Also filed as: SPRAGUE FREDERICK · SPRAGUE FREDERICK L
2 granted patents·1 pending application·4 citations·filing 1975–2018
40Inventor score
Top patents by PatentIndex Score
3 records- 0159US10104976B1KneelerSPRAGUE FREDERICK·Filed 2018·Granted Oct 23, 2018·4 cites·29 claims
- 0235US2006272584A1Restricted access pet feeding deviceSPRAGUE FREDERICK·Filed 2006·Application pending·0 cites
- 0317US3948030ASpindle protection deviceROCKWELL INTERNATIONAL CORP·Filed 1975·Granted Apr 6, 1976·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →