Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11541429 | Gemstone sorting | Andrew John Portsmouth, Colin McGuinness, David Fisher | 2023-01-03 |
| 9958398 | Measuring parameters of a cut gemstone | Siobhan D'Gama, Peter Stanley Rose, Maxwell Ralph Willis | 2018-05-01 |
| 9796536 | Automatic gemstone orientation | Siobhan D'Gama, Maxwell Ralph Willis, Graham Ralph Powell | 2017-10-24 |
| 9682864 | Dislocation engineering in single crystal synthetic diamond material | Harpreet Kaur Dhillon, Rizwan Uddin Ahmad Khan, Daniel James Twitchen, Philip Maurice Martineau | 2017-06-20 |