Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6702021 | Methods and drilling fluids for drilling well bores and sealing pipe strings therein | Philip D. Nguyen, Johnny Barton | 2004-03-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6702021 | Methods and drilling fluids for drilling well bores and sealing pipe strings therein | Philip D. Nguyen, Johnny Barton | 2004-03-09 |