Inventor · disambiguated record
Donald O. Shaffer
Also filed as: SHAFFER DONALD O
1 granted patent·49 citations·filing 1979–1979
48Inventor score
Technology areasB05B
Files withCHAMPION SPARK PLUG CO1
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →