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Robert A. Pena
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Houston, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Mechanism for retaining and releasing pump down plug
Patent number
11,078,747
Issue date
Aug 3, 2021
Baker Hughes Oilfield Operations LLC
Marcelle H. Hedrick
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bi-directional locking liner hanger with pressure balanced setting...
Patent number
10,012,046
Issue date
Jul 3, 2018
Baker Hughes, a GE company, LLC
Daniel C. Ewing
E21 - EARTH DRILLING MINING
Information
Patent Grant
Segmented collapsible ball seat allowing ball recovery
Patent number
8,662,162
Issue date
Mar 4, 2014
Baker Hughes Incorporated
Justin C. Kellner
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
MECHANISM FOR RETAINING AND RELEASING PUMP DOWN PLUG
Publication number
20210198972
Publication date
Jul 1, 2021
Baker Hughes Oilfield Operations LLC
Marcelle H. Hedrick
E21 - EARTH DRILLING MINING
Information
Patent Application
Inflatable Expanded Liner Hanger Assembly with Weight Set Liner Top...
Publication number
20170218737
Publication date
Aug 3, 2017
BAKER HUGHES INCORPORATED
James S. Sanchez
E21 - EARTH DRILLING MINING
Information
Patent Application
Bi-directional Locking Liner Hanger with Pressure Balanced Setting...
Publication number
20150300111
Publication date
Oct 22, 2015
BAKER HUGHES INCORPORATED
Daniel C. Ewing
E21 - EARTH DRILLING MINING
Information
Patent Application
Segmented Collapsible Ball Seat Allowing Ball Recovery
Publication number
20120199341
Publication date
Aug 9, 2012
BAKER HUGHES INCORPORATED
Justin C. Kellner
E21 - EARTH DRILLING MINING