Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12194504 | Melee gemstone sorting | Philip Harris, Andrew John Portsmouth, Trevor Anthony Harries, Colin McGuinness, David Fisher | 2025-01-14 |
| 9958398 | Measuring parameters of a cut gemstone | Nicholas Matthew Davies, Siobhan D'Gama, Maxwell Ralph Willis | 2018-05-01 |
| 9625393 | Gemstone viewer | James Gordon Charters Smith, Michael Peter Gaukroger | 2017-04-18 |
| 9188542 | Gemstone viewer | James Gordon Charters Smith, Michael Peter Gaukroger | 2015-11-17 |
| D682905 | Gemstone viewer | Jonathan G Kendall, Maxwell Ralph Willis, James Gordon Charters Smith, Siobhan D'Gama, Christopher Daws +3 more | 2013-05-21 |