Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9625393 | Gemstone viewer | James Gordon Charters Smith, Peter Stanley Rose | 2017-04-18 |
| 9188542 | Gemstone viewer | James Gordon Charters Smith, Peter Stanley Rose | 2015-11-17 |
| 9133566 | High crystalline quality synthetic diamond | Daniel James Twitchen, Grant Charles Summerton, Ian Friel, John Olaf Hansen, Keith Barry Guy +4 more | 2015-09-15 |
| 9061263 | Method of improving the crystalline perfection of diamond crystals | Grant Charles Summerton, John Olaf Hansen, Robert Charles Burns, Timothy Patrick Gerard Addison, Simon Craig Lawson +1 more | 2015-06-23 |
| 6358427 | Marking diamond | James Gordon Charters Smith, Keith Barry Guy, Graham Ralph Powell | 2002-03-19 |
| 5194711 | Cutting using high energy radiation | — | 1993-03-16 |
| 5077767 | Determining the existence of misorientation in a crystal | — | 1991-12-31 |