Filter wheel assembly for downhole spectroscopy | Patent Publication Number 20110108721

US 20110108721 A1
Patent NumberUS 08436296 B2
Application Number12613665
Filled DateNov 6, 2009
Priority DateNov 6, 2009
Publication DateMay 12, 2011
Original AssigneePrecision Energy Services Inc.
Current AssigneeWells Fargo
Inventor/ApplicantsBryan W. Kasperski
Sean M. Christian
Jess V. Ford
Margaret C. Waid
Dennis Roessler
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