Inventor · disambiguated record

Grant A. Duguid

Also filed as: DUGUID GRANT A

1 granted patent·14 citations·filing 1990–1990

36Inventor score
Technology areasE21B
Files withBOTTOM HOLE TECH1

Top patents by PatentIndex Score

1 record

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →