Inventor · disambiguated record
William H. Sprague, Jr.
Also filed as: SPRAGUE JR WILLIAM H · SPRAGUE WILLIAM H
2 granted patents·31 citations·filing 1984–2003
61Inventor score
Top patents by PatentIndex Score
2 records- 0176US7161077B1Gradually progressive bore BB-flat, CC, E-flat, F, or B-flat valved musical wind instrument and valved B-flat/F inverted double musical wind instrumentFRY ROBERT C·Filed 2003·Granted Jan 9, 2007·21 cites·18 claims
- 0236US4551612AWall-contained electric water heating tankSPRAGUE WILLIAM H·Filed 1984·Granted Nov 5, 1985·10 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when William H. Sprague, Jr. files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →