Inventor · disambiguated record
Robert R. Spreng
Also filed as: SPRENG ROBERT R
2 granted patents·47 citations·filing 1975–1983
64Inventor score
Technology areasE05B
Files withBRIGGS & STRATTON CORP2
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →