Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945113 | End-to-end ultrasonic inspection of tubular goods | David E. Siverling, Doug R. Lester | 2005-09-20 |
| 4459537 | Up-down voltage regulator | — | 1984-07-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6945113 | End-to-end ultrasonic inspection of tubular goods | David E. Siverling, Doug R. Lester | 2005-09-20 |
| 4459537 | Up-down voltage regulator | — | 1984-07-10 |