P

Inventor

MARSHALL GREG

US10 patents
⚠️ This page may combine multiple inventors who share the name “MARSHALL GREG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WEATHERFORD LAMB

3 patents
US7100696B2Sep 5, 2006

Disconnect for use in a wellbore

WEATHERFORD LAMB37 citations91
US7963341B2Jun 21, 2011

Apparatus and methods of use for a whipstock anchor

WEATHERFORD LAMB12 citations78
US7172039B2Feb 6, 2007

Down-hole vane motor

WEATHERFORD LAMB7 citations68

MARSHALL GREG

2 patents
US5248986ASep 28, 1993

Universal swivel device for an adjustable angle vehicular antenna

MARSHALL GREG8 citations70
US5198829AMar 30, 1993

Antenna rod with removably mounted suction cups

MARSHALL GREG8 citations70

SILVERWELL TECH LTD

2 patents
US12435606B2Oct 7, 2025

Dual direction lift gas valve with cavitation prevention

SILVERWELL TECH LTD0 citations42
US12078040B2Sep 3, 2024

Dual direction lift gas valve with cavitation prevention

SILVERWELL TECH LTD0 citations42

AMETEK SCP INC

1 patent
US9270051B1Feb 23, 2016

Wet mate connector

AMETEK SCP INC52 citations87

SHAW JOEL D

1 patent
US8739885B2Jun 3, 2014

Debris barrier for hydraulic disconnect tools

SHAW JOEL D1 citations49

HALLIBURTON ENERGY SERV INC

1 patent
US8770300B2Jul 8, 2014

Debris barrier for hydraulic disconnect tools

HALLIBURTON ENERGY SERV INC0 citations40