Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6391215 | Diamond marking | Andrew D. G. Stewart | 2002-05-21 |
| 6358427 | Marking diamond | Keith Barry Guy, Graham Ralph Powell, Michael Peter Gaukroger | 2002-03-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6391215 | Diamond marking | Andrew D. G. Stewart | 2002-05-21 |
| 6358427 | Marking diamond | Keith Barry Guy, Graham Ralph Powell, Michael Peter Gaukroger | 2002-03-19 |