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David B. Needham
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Magnolia, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Methods and apparatus for measuring multiple Fabry-Perot gaps
Patent number
8,115,937
Issue date
Feb 14, 2012
Davidson Instruments
David B. Needham
G01 - MEASURING TESTING
Information
Patent Grant
Fiber optic seismic sensor based on MEMS cantilever
Patent number
7,684,051
Issue date
Mar 23, 2010
Halliburton Energy Services, Inc.
John W. Berthold
G01 - MEASURING TESTING
Information
Patent Grant
Tracking algorithm for linear array signal processor for Fabry-Pero...
Patent number
7,639,368
Issue date
Dec 29, 2009
Halliburton Energy Services, Inc.
David B. Needham
G01 - MEASURING TESTING
Information
Patent Grant
Interferometric signal conditioner for measurement of absolute stat...
Patent number
7,305,158
Issue date
Dec 4, 2007
Davidson Instruments Inc.
Larry A. Jeffers
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
WELL TOOL PRESSURE TESTING
Publication number
20140299316
Publication date
Oct 9, 2014
David B. Needham
G01 - MEASURING TESTING
Information
Patent Application
Fiber optic seismic sensor based on MEMS cantilever
Publication number
20080174781
Publication date
Jul 24, 2008
John W. Berthold
G01 - MEASURING TESTING
Information
Patent Application
Methods and apparatus for measuring multiple fabry-perot gaps
Publication number
20080043245
Publication date
Feb 21, 2008
David B. Needham
G01 - MEASURING TESTING
Information
Patent Application
Tracking algorithm for linear array signal processor for fabry-pero...
Publication number
20070064241
Publication date
Mar 22, 2007
David B. Needham
G01 - MEASURING TESTING
Information
Patent Application
Interferometric signal conditioner for measurement of absolute stat...
Publication number
20050244096
Publication date
Nov 3, 2005
Larry A. Jeffers
G01 - MEASURING TESTING