Inventor record

HAKKINEN LEO

This page previously combined 2different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 92Leo Hakkinen12 patent records·184 citations·E21B B66F E21C2 on this record
• 18HAKKINEN LEO1 patent record·2 citations·E21B1 on this record

Inventor identities via PatentsView disambiguation — see methodology.