Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418574 | Magnetic method and apparatus for measuring wall thickness | — | 1983-12-06 |
| 4412315 | Acoustic pulse-echo wall thickness method and apparatus | — | 1983-10-25 |
| 4253167 | Method of marking and detecting a pipeline location | Robert W. Pitts, Jr. | 1981-02-24 |