Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5508915 | Method to combine statistical and engineering techniques for stuck pipe data analysis | Yuh-Hwang Tsao, Michele M. Thomas, Eugene A. Sikirica, Albert T. Wang, Marco Rasi | 1996-04-16 | $97,267,000 |
| 4780266 | Method for detecting drilling fluid in the annulus of a cased wellbore | Mark E. Jordan, Richard Carl Haut | 1988-10-25 | $58,054,000 |