Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11680927 | Dual layer circuit board for sensors on a pipeline inspection tool | Calvin L. Simmons, Michael P. Sheffield, William Callahan | 2023-06-20 |
| 11579119 | Radial springs on sensor arms of pipeline inspection tool | William Callahan | 2023-02-14 |