Inventor · disambiguated record
William A. Chappell
Also filed as: CHAPPELL WILLIAM A
3 granted patents·63 citations·filing 1982–1985
74Inventor score
Technology areasA47J
Files withRIVAL MANUFACTURING CO3
Top patents by PatentIndex Score
3 records- 0169US4464983APercolator including pump-type dispenserRIVAL MANUFACTURING CO·Filed 1982·Granted Aug 14, 1984·32 cites·15 claims
- 0255US4512246APercolator including pump-type dispenserRIVAL MANUFACTURING CO·Filed 1984·Granted Apr 23, 1985·20 cites·16 claims
- 0338US4622889APercolator including pump type dispenserRIVAL MANUFACTURING CO·Filed 1985·Granted Nov 18, 1986·11 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →