Inventor

ROBB EWAN OGILVIE

GB3 patents

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

HALLIBURTON ENERGY SERVICES INC

2 patents

US9657550B2May 23, 2017

Pressure equalization for dual seat ball valve

HALLIBURTON ENERGY SERVICES INC7 citations79

US10577889B2Mar 3, 2020

Constructed annular safety valve element package

HALLIBURTON ENERGY SERVICES INC0 citations44

ROBB EWAN OGILVIE

1 patent

US10253605B2Apr 9, 2019

Constructed annular safety valve element package

ROBB EWAN OGILVIE0 citations37