Issued Patents All Time
Showing 76–100 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6753961 | Spectroscopic ellipsometer without rotating components | Adam E. Norton, Kenneth C. Johnson, Fred E. Stanke | 2004-06-22 |
| 6738136 | Accurate small-spot spectrometry instrument | Adam E. Norton, Fred E. Stanke, Rodney Smedt | 2004-05-18 |
| 6691779 | Wellbore antennae system and method | Jacques R. Tabanou, Reinhart Ciglenec | 2004-02-17 |
| 6573716 | Method and apparatus for tuning an NMR coil | Ali K. Toufaily, Bruno Jorion, Luis E. Depavia | 2003-06-03 |
| 6559639 | Estimating permeability without determinating a distribution of relaxation times | Chanh Cao Minh, Nicholas J. Heaton | 2003-05-06 |
| 6534980 | Downhole NMR tool antenna design | Ali K. Toufaily, Bruno Jorion, Luis E. Depavia | 2003-03-18 |
| 6522137 | Two-dimensional magnetic resonance imaging in a borehole | Boqin Sun, Reza Taherian, Steven F. Crary | 2003-02-18 |
| 6459992 | Method and apparatus for determining logging tool displacements | Robert Freedman, Luis E. Depavia | 2002-10-01 |
| 6400147 | Downhole NMR tool having a programmable pulse sequencer | Ali K. Toufaily, Bruno Jorion, Luis E. Depavia | 2002-06-04 |
| 6255818 | Method and apparatus for performing magnetic resonance measurements | Nicholas J. Heaton, Dylan H. Davies, M. Reza Taherian, Boqin Sun | 2001-07-03 |
| 6166543 | Method and apparatus for measuring nuclear magnetic resonance | Pabitra N. Sen, Mohammad-Reza Taherian, Boqin Sun | 2000-12-26 |
| 6107797 | Magnetic resonance logging apparatus and method | — | 2000-08-22 |
| 6023163 | Well logging method and apparatus for determining gas and diffusion coefficient using NMR | Charles Flaum | 2000-02-08 |
| 6008646 | Apparatus for protecting a magnetic resonance antenna | Douglas D. Griffin, James Stephen Hall | 1999-12-28 |
| 5977768 | Nuclear magnetic resonance logging with azimuthal resolution | Shu-Kong Chang | 1999-11-02 |
| 5923167 | Pulsed nuclear magnetism tool for formation evaluation while drilling | Shu-Kong Chang, Krishnamurthy Ganesan, Martin E. Poitzsch, Robert L. Kleinberg | 1999-07-13 |
| 5914598 | Pulsed nuclear magnetism tool for formation evaluation while drilling | Robert L. Kleinberg | 1999-06-22 |
| 5831433 | Well logging method and apparatus for NMR and resistivity measurements | Douglas D. Griffin | 1998-11-03 |
| 5796252 | Nuclear magnetic resonance borehole logging apparatus and method for ascertaining a volume of hydrocarbons independent of a diffusion coefficient | Robert L. Kleinberg, Lawrence L. Latour | 1998-08-18 |
| 5767674 | Apparatus for protecting a magnetic resonance antenna | Douglas D. Griffin, James Stephen Hall | 1998-06-16 |
| 5705927 | Pulsed nuclear magnetism tool for formation evaluation while drilling including a shortened or truncated CPMG sequence | Douglas D. Griffin | 1998-01-06 |
| 5629623 | Pulsed nuclear magnetism tool for formation evaluation while drilling | Robert L. Kleinberg | 1997-05-13 |
| 5596274 | Determining bound and unbound fluid volumes using nuclear magnetic resonance pulse sequences | — | 1997-01-21 |
| 5557201 | Pulsed nuclear magnetism tool for formation evaluation while drilling | Robert L. Kleinberg | 1996-09-17 |
| 5510712 | Method and apparatus for measuring formation resistivity in cased holes | Vladimir Druskin | 1996-04-23 |