Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920802 | Ultrasonic check valve inspection | Craig W. McMullin, John E. Rosenberger, Shahab S. Negahban | 1990-05-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920802 | Ultrasonic check valve inspection | Craig W. McMullin, John E. Rosenberger, Shahab S. Negahban | 1990-05-01 |