Inventor · disambiguated record
Darryl Kenneth Mackie
Also filed as: MACKIE DARRYL K · MACKIE DARRYL KENNETH
3 granted patents·3 citations·filing 2010–2019
54Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0163US10450836B2Annulus access valveHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Oct 22, 2019·2 cites·19 claims
- 0249US11867022B2Electric ball valve mechanismHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Jan 9, 2024·0 cites·18 claims
- 0336US8393397B2Apparatus and method for separating a tubular string from a subsea well installationTREWHELLA ROSS JOHN·Filed 2010·Granted Mar 12, 2013·1 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →