Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839658 | Process for en route aircraft conflict alert determination and prediction | Shawn Kathol | 1989-06-13 |
| 4806936 | Method of determining the position of multiple targets using bearing-only sensors | Henry A. Heidary | 1989-02-21 |