Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608565 | Downward communication in a borehole through drill string rotary modulation | Donald H. Van Steenwyk, Robert M. Baker | 2003-08-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608565 | Downward communication in a borehole through drill string rotary modulation | Donald H. Van Steenwyk, Robert M. Baker | 2003-08-19 |