Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8014987 | Modeling the transient behavior of BHA/drill string while drilling | Nathan Wicks, Yong Chang, Clinton D. Chapman, Vivek Singh | 2011-09-06 |
| 7984771 | Methods and apparatus for attenuating drillstring vibrations | Joachim Sihler, Demosthenis Georgeou Pafitis, Chaur-Jian Hsu | 2011-07-26 |
| 7963347 | Systems and methods for reducing backward whirling while drilling | — | 2011-06-21 |
| 7906861 | Harvesting energy in remote locations | Julio C. Guerrero, Francois M. Auzerais, Kuo-Chiang Chen, Kevin John Forbes | 2011-03-15 |