Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498984 | Locating positions on maps | Hugh John Agnew | 2002-12-24 |
| 6304819 | Locating positions on maps | Hugh John Agnew | 2001-10-16 |
| 6292137 | Direction indicating compasses | Hugh John Agnew | 2001-09-18 |
| 5278763 | Navigation aids | Hugh John Agnew, Roger K. Woolley | 1994-01-11 |