Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6606072 | Antenna design using a slot architecture for global positioning system (GPS) applications | Roger Hayward, John Glissman, Noel H. C. Marshall | 2003-08-12 |
| 6552681 | Method for determining vertical and horizontal GPS position using altitude information | Roger Hayward | 2003-04-22 |
| 6531981 | Global augmentation to global positioning system | Roger Hayward, Jock Christie | 2003-03-11 |