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Don A. Hopmann
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Alvin, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Valve with erosion resistant flow trim
Patent number
11,933,415
Issue date
Mar 19, 2024
Weatherford Technology Holdings, LLC
Nauman H. Mhaskar
E21 - EARTH DRILLING MINING
Information
Patent Grant
System and method for electrical control of downhole well tools
Patent number
11,371,318
Issue date
Jun 28, 2022
Weatherford Technology Holdings, LLC
Don A. Hopmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Prevention of gas migration through downhole control lines
Patent number
11,125,346
Issue date
Sep 21, 2021
Weatherford Technology Holdings, LLC
Otavio Maffud Cilli
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubing pressure insensitive pressure compensated actuator for a dow...
Patent number
9,133,687
Issue date
Sep 15, 2015
Baker Hughes Incorporated
James T. Sloan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Spoolable signal conduction and connection line and method
Patent number
8,602,658
Issue date
Dec 10, 2013
Baker Hughes Incorporated
Don A. Hopmann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spoolable downhole control system and method
Patent number
8,397,828
Issue date
Mar 19, 2013
Baker Hughes Incorporated
Don A. Hopmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Position sensor for a downhole completion device
Patent number
8,237,443
Issue date
Aug 7, 2012
Baker Hughes Incorporated
Don A. Hopmann
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Optical position sensing for well control tools
Patent number
7,104,331
Issue date
Sep 12, 2006
Baker Hughes Incorporated
Terry R. Bussear
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for repeating messages in long intelligent completion system...
Patent number
6,798,350
Issue date
Sep 28, 2004
Baker Hughes Incorporated
Jorge O. Maxit
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Synchronized Actuator Having Multiple Motors for Downhole Well Tool
Publication number
20240247565
Publication date
Jul 25, 2024
Weatherford Technology Holdings, LLC.
Nauman H. Mhaskar
E21 - EARTH DRILLING MINING
Information
Patent Application
VALVE WITH EROSION RESISTANT FLOW TRIM
Publication number
20230304594
Publication date
Sep 28, 2023
Weatherford Technology Holdings, LLC.
Nauman H. MHASKAR
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR ELECTRICAL CONTROL OF DOWNHOLE WELL TOOLS
Publication number
20220316299
Publication date
Oct 6, 2022
Weatherford Technology Holdings, LLC.
Don A. HOPMANN
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR ELECTRICAL CONTROL OF DOWNHOLE WELL TOOLS
Publication number
20210062614
Publication date
Mar 4, 2021
Weatherford Technology Holdings, LLC.
Don A. HOPMANN
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
PREVENTION OF GAS MIGRATION THROUGH DOWNHNOLE CONTROL LINES
Publication number
20200347945
Publication date
Nov 5, 2020
Weatherford Technology Holdings, LLC.
Otavio Maffud CILLI
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
TUBING PRESSURE INSENSITIVE PRESSURE COMPENSATED ACTUATOR FOR A DOW...
Publication number
20130043039
Publication date
Feb 21, 2013
BAKER HUGHES INCORPORATED
James T. Sloan
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
SPOOLABLE DOWNHOLE CONTROL SYSTEM AND METHOD
Publication number
20110232921
Publication date
Sep 29, 2011
BAKER HUGHES INCORPORATED
Don A. Hopmann
E21 - EARTH DRILLING MINING
Information
Patent Application
SPOOLABLE SIGNAL CONDUCTION AND CONNECTION LINE AND METHOD
Publication number
20110194817
Publication date
Aug 11, 2011
BAKER HUGHES INCORPORATED
Don A. Hopmann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELECTRO-MAGNETIC MULTI CHOKE POSITION VALVE
Publication number
20090151790
Publication date
Jun 18, 2009
BAKER HUGHES INCORPORATED
Priyesh Ranjan
E21 - EARTH DRILLING MINING
Information
Patent Application
Position Sensor for a Downhole Completion Device
Publication number
20090128141
Publication date
May 21, 2009
Don A. Hopmann
E21 - EARTH DRILLING MINING
Information
Patent Application
Optical position sensing for well control tools
Publication number
20030127232
Publication date
Jul 10, 2003
BAKER HUGHES INCORPORATED
Terry R. Bussear
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for repeating messages in long intelligent completion system...
Publication number
20020179303
Publication date
Dec 5, 2002
BAKER HUGHES INCORPORATED
Jorge O. Maxit
E21 - EARTH DRILLING MINING