Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6986396 | Method for determining sweep efficiency for removing cuttings from a borehole | — | 2006-01-17 |
| 6938458 | Acoustic doppler downhole fluid flow measurement | Wei Han, Jean Michel Beique, James R. Birchak, Tim Wiemers, Paul F. Rodney | 2005-09-06 |
| 6829947 | Acoustic Doppler downhole fluid flow measurement | Wei Han, Jean Michel Beique, James R. Birchak, Tim Wiemers, Paul F. Rodney | 2004-12-14 |
| 6662884 | Method for determining sweep efficiency for removing cuttings from a borehole | — | 2003-12-16 |