Inventor · disambiguated record
Jack F. Sigh
Also filed as: SIGH JACK F
2 granted patents·28 citations·filing 1974–1975
61Inventor score
Technology areasC21C
Files withUNITED STATES STEEL CORP2
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →