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Edgar C. Schroeder
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San Antonio, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Seismic wave generation systems and methods for cased wells
Patent number
7,916,578
Issue date
Mar 29, 2011
Schlumberger Technology Corporation
James Minto
G01 - MEASURING TESTING
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Patent Grant
Asymmetrical lateral-force seismic source transducer
Patent number
4,706,228
Issue date
Nov 10, 1987
Southwest Research Institute
Thomas E. Owen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Grant
Electrodeless spark discharge acoustic pulse transducer for borehol...
Patent number
4,651,311
Issue date
Mar 17, 1987
Southwest Research Institute
Thomas E. Owen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
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Patent Application
SEISMIC WAVE GENERATION SYSTEMS AND METHODS FOR CASED WELLS
Publication number
20090283355
Publication date
Nov 19, 2009
James Minto
G01 - MEASURING TESTING