Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5214955 | Constant frequency pulsed phase-locked loop measuring device | William T. Yost, John H. Cantrell | 1993-06-01 |
| 5164669 | Method of characterizing residual stress in ferromagnetic materials using a pulse histogram of acoustic emission signals | Min Namkung, William T. Yost, John L. Grainger | 1992-11-17 |