Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6889780 | Method for drilling depleted sands with minimal drilling fluid loss | Donald L. Whitfill, Kenneth W. Pober, Thomas R. Carlson, Uday Tare, James V. Fisk, Jr. | 2005-05-10 |