Inventor

HARRINGTON KEVIN E

US3 patents

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

PERCUSSION DRILLING INC

1 patent

US5131476AJul 21, 1992

Down hole percussion drill apparatus

PERCUSSION DRILLING INC37 citations81

SMITH INTERNATIONAL

1 patent

US9416593B2Aug 16, 2016

Piston strike face and bit interface for percussion hammer drill

SMITH INTERNATIONAL0 citations45

BAKER HUGHES INC

1 patent

US9677357B2Jun 13, 2017

Anchor slip and seal locking mechanism

BAKER HUGHES INC0 citations39