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Michael C. Derby
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Extended length packer with timed setting
Patent number
9,845,656
Issue date
Dec 19, 2017
Weatherford Technology Holdings, LLC
Patrick J. Zimmerman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Packer having swellable and compressible elements
Patent number
9,637,997
Issue date
May 2, 2017
Weatherford Technology Holdings, LLC
Brandon C. Goodman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Split foldback rings with anti-hooping band
Patent number
9,587,458
Issue date
Mar 7, 2017
Weatherford Technology Holdings, LLC
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole tool having setting valve for packing element
Patent number
9,567,822
Issue date
Feb 14, 2017
Weatherford Technology Holdings, LLC
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic set packer with piston to annulus communication
Patent number
9,512,693
Issue date
Dec 6, 2016
Weatherford Technology Holdings, LLC
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Grant
Double compression set packer
Patent number
9,476,280
Issue date
Oct 25, 2016
Weatherford Technology Holdings, LLC
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole tool having setting valve for packing element
Patent number
8,695,697
Issue date
Apr 15, 2014
Weatherford/Lamb, Inc.
Michael Derby
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Packer Having Swellable and Compressible Elements
Publication number
20150060088
Publication date
Mar 5, 2015
WEATHERFORD/LAMB, INC.
Brandon C. Goodman
E21 - EARTH DRILLING MINING
Information
Patent Application
Split Foldback Rings with Anti-Hooping Band
Publication number
20140262351
Publication date
Sep 18, 2014
WEATHERFORD/LAMB, INC.
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Application
Double Compression Set Packer
Publication number
20140262350
Publication date
Sep 18, 2014
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Application
Extended Length Packer with Timed Setting
Publication number
20140251640
Publication date
Sep 11, 2014
WEATHERFORD/LAMB, INC.
Patrick J. Zimmerman
E21 - EARTH DRILLING MINING
Information
Patent Application
Hydraulic Set Packer with Piston to Annulus Communication
Publication number
20140216764
Publication date
Aug 7, 2014
WEATHERFORD/LAMB, INC.
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole Tool Having Setting Valve for Packing Element
Publication number
20140182862
Publication date
Jul 3, 2014
WEATHERFORD/LAMB, INC.
Michael C. Derby
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole Tool Having Setting Valve for Packing Element
Publication number
20110186307
Publication date
Aug 4, 2011
WEATHERFORD/LAMB, INC.
Michael Derby
E21 - EARTH DRILLING MINING