Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33977 | Ultrasonic leak detecting method and apparatus | Mark A. Goodman, John R. Zeno | 1992-06-30 |
| 4416145 | Ultrasonic leak detecting method and apparatus | Mark A. Goodman, John R. Zeno | 1983-11-22 |