Inventor · disambiguated record

Lionel M. Gingras

Also filed as: GINGRAS LIONEL M

2 granted patents·136 citations·filing 1989–1993

69Inventor score

Technology areasE21B

Files withEASTERN OIL TOOLS PTE LTD2

Top patents by PatentIndex Score

2 records

0178US5287879AHydraulically energized wireline blowout preventerEASTERN OIL TOOLS PTE LTD·Filed 1993·Granted Feb 22, 1994·76 cites·30 claims
0277US4938290AWireline blowout preventer having mechanical and hydraulic sealingEASTERN OIL TOOLS PTE LTD·Filed 1989·Granted Jul 3, 1990·60 cites·18 claims

Join the waitlist — get patent alerts

Get an alert when Lionel M. Gingras files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

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