Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935908 | Finding the direction of a sound | Martyn D. Bull, Stuart I. Jardine, David M. Treherne | 1990-06-19 |
| 4581727 | Finding the direction of a sound | Stuart I. Jardine, Andrew J. Quinn, David M. Treherne | 1986-04-08 |