Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671224 | Active reduction of tool borne noise in a sonic logging tool | — | 2003-12-30 |
| 6643221 | Structures and methods for damping tool waves particularly for acoustic logging tools | Chaur-Jian Hsu, Richard D. Joyce, Ralph M. D'Angelo, Jeffrey B. Aron, Pierre Campanac +4 more | 2003-11-04 |
| 6631327 | Quadrupole acoustic shear wave logging while drilling | Chaur-Jian Hsu, Bikash Sinha | 2003-10-07 |