Issued Patents All Time
Showing 126–150 of 179 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497256 | Method and apparatus for collecting fluid samples downhole | Leroy W. Ledgerwood, III | 2009-03-03 |
| 7445934 | System and method for estimating filtrate contamination in formation fluid samples using refractive index | Angus J. Simpson | 2008-11-04 |
| 7421892 | Method and apparatus for estimating a property of a downhole fluid using a coated resonator | Peter W. Reittinger | 2008-09-09 |
| 7423258 | Method and apparatus for analyzing a downhole fluid using a thermal detector | Paul Bergren | 2008-09-09 |
| 7408645 | Method and apparatus for a downhole spectrometer based on tunable optical filters | — | 2008-08-05 |
| 7395704 | Method and apparatus for downhole fluid analysis using molecularly imprinted polymers | — | 2008-07-08 |
| 7387021 | Method and apparatus for reservoir characterization using photoacoustic spectroscopy | — | 2008-06-17 |
| 7373813 | Method and apparatus for ion-selective discrimination of fluids downhole | — | 2008-05-20 |
| 7362422 | Method and apparatus for a downhole spectrometer based on electronically tunable optical filters | Paul Bergren | 2008-04-22 |
| 7346460 | Downhole PV tests for bubble point pressure | John M. Michaels, Jaedong Lee | 2008-03-18 |
| 7317989 | Method and apparatus for chemometric estimations of fluid density, viscosity, dielectric constant, and resistivity from mechanical resonator data | Peter W. Reittinger | 2008-01-08 |
| 7299136 | Method and apparatus for estimating of fluid contamination downhole | Bernardo E. Pohl | 2007-11-20 |
| 7280214 | Method and apparatus for a high resolution downhole spectrometer | Arnold Walkow, Paul Bergren | 2007-10-09 |
| 7240546 | Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents | — | 2007-07-10 |
| 7219541 | Method and apparatus for downhole fluid analysis for reservoir fluid characterization | — | 2007-05-22 |
| 7214933 | Method and apparatus for a downhole fluorescence spectrometer | Arnold Walkow, Paul Bergren | 2007-05-08 |
| 7197195 | Fiber optics head utilizing randomized fibers per sensor | Arnold Walkow | 2007-03-27 |
| 7196786 | Method and apparatus for a tunable diode laser spectrometer for analysis of hydrocarbon samples | — | 2007-03-27 |
| 7173239 | Method and apparatus for downhole quantification of methane using near infrared spectroscopy | — | 2007-02-06 |
| 7162918 | Method and apparatus for downhole fluid characterization using flexural mechanical resonators | Arnold Walkow, Paul Bergren, Peter W. Reittinger | 2007-01-16 |
| 7124596 | Downhole sorption cooling and heating in wireline logging and monitoring while drilling | Paul Bergren | 2006-10-24 |
| 7082994 | Radially adjustable downhole devices and methods for same | Elton Frost, Jr., Ole Engels | 2006-08-01 |
| 7084392 | Method and apparatus for a downhole fluorescence spectrometer | Arnold Walkow, Paul Bergren, Louis Perez | 2006-08-01 |
| 7024917 | Method and apparatus for an acoustic pulse decay density determination | — | 2006-04-11 |
| 7027928 | System and method for determining formation fluid parameters | — | 2006-04-11 |