Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683464 | Safety monitor means and method | Winthrop K. Brown, Frank L. Lankford, Jr., Katherine L. Greenhill, Ronald L. Campsey | 1987-07-28 |
| 4578578 | Method for correcting spectrum shift | Frank L. Lankford, Jr. | 1986-03-25 |