Inventor · disambiguated record

Matti Leppala

Also filed as: LEPPAELAE MATTI

2 granted patents·23 citations·filing 1981–1981

59Inventor score

Technology areasE21B F15B

Files withLEPPAELAE MATTI1 TAMPELLA OY AB1

Top patents by PatentIndex Score

2 records

0139US4438984ADrill steel guiding and centralizing mechanismLEPPAELAE MATTI·Filed 1981·Granted Mar 27, 1984·18 cites·3 claims
0232US4558630AHydraulic mechanism with elastically backed piston parts and cooperating valve meansTAMPELLA OY AB·Filed 1981·Granted Dec 17, 1985·5 cites·12 claims

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