Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8004932 | Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging | Yibing Zheng, Daniel Moos, Vladimir Dubinsky, Douglas J. Patterson | 2011-08-23 |
| 7970544 | Method and apparatus for characterizing and estimating permeability using LWD Stoneley-wave data | Douglas J. Patterson | 2011-06-28 |
| 7924652 | Method for determining seismic anisotropy | Vladimir Dubinsky, Yibing Zheng | 2011-04-12 |
| 7911877 | Active noise cancellation through the use of magnetic coupling | Douglas J. Patterson, Alexei Bolshakov | 2011-03-22 |
| 7912648 | Method and apparatus for imaging bed boundaries using azimuthal propagation resistivity measurements | Tsili Wang | 2011-03-22 |