Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642881 | Low frequency electromagnetic absorption surface | John Roy Sambles, Alistair P Hibbins | 2003-11-04 |
| 6522399 | Signature mark recognition systems | John Roy Sambles | 2003-02-18 |