Inventor
BERGREN PAUL
US13 patents
⚠️ This page may combine multiple inventors who share the name “BERGREN PAUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
12 patentsUS7362422B2Apr 22, 2008
Method and apparatus for a downhole spectrometer based on electronically tunable optical filters
BAKER HUGHES INC91 citations98
US6938470B2Sep 6, 2005
Method and apparatus for downhole fluid characterization using flexural mechanical resonators
BAKER HUGHES INC77 citations97
US6798518B2Sep 28, 2004
Method and apparatus for a derivative spectrometer
BAKER HUGHES INC47 citations95
US7423258B2Sep 9, 2008
Method and apparatus for analyzing a downhole fluid using a thermal detector
BAKER HUGHES INC38 citations92
US7280214B2Oct 9, 2007
Method and apparatus for a high resolution downhole spectrometer
BAKER HUGHES INC46 citations92
US7162918B2Jan 16, 2007
Method and apparatus for downhole fluid characterization using flexural mechanical resonators
BAKER HUGHES INC25 citations92
US7124596B2Oct 24, 2006
Downhole sorption cooling and heating in wireline logging and monitoring while drilling
BAKER HUGHES INC19 citations92
US7084392B2Aug 1, 2006
Method and apparatus for a downhole fluorescence spectrometer
BAKER HUGHES INC39 citations92
US7016026B2Mar 21, 2006
Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer
BAKER HUGHES INC29 citations92
US6683681B2Jan 27, 2004
Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer
BAKER HUGHES INC44 citations92
US7214933B2May 8, 2007
Method and apparatus for a downhole fluorescence spectrometer
BAKER HUGHES INC14 citations83
US7694734B2Apr 13, 2010
Method and apparatus for insulating a resonator downhole
BAKER HUGHES INC5 citations58