Inventor

PENA ROBERT A

US2 patents

⚠️ This page may combine multiple inventors who share the name “PENA ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAKER HUGHES INC

1 patent

US10012046B2Jul 3, 2018

Bi-directional locking liner hanger with pressure balanced setting mechanism

BAKER HUGHES INC7 citations79

KELLNER JUSTIN C

1 patent

US8662162B2Mar 4, 2014

Segmented collapsible ball seat allowing ball recovery

KELLNER JUSTIN C13 citations79