| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 12 | |
| #2 | WIPO (World Intellectual Property Organization) | 10 | |
| #3 | Canada | 8 | |
| #4 | United Kingdom | 7 | |
| #5 | EPO (European Patent Office) | 6 | |
| #6 | Honduras | 6 | |
| #7 | India | 4 | |
| #8 | South Africa | 3 | |
| #9 | Israel | 2 | |
| #10 | Japan | 2 | |
| #11 | Singapore | 2 | |
| #12 | United States | 2 | |
| #13 | African Regional Industrial Property Organization | 1 | |
| #14 | Australia | 1 | |
| #15 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Computer technology | |
| #5 | Chemical engineering | |
| #6 | Packaging and shipping |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smith James Gordon Charters | 38 |
| #2 | Davies Nicholas Matthew | 18 |
| #3 | Powell Graham Ralph | 15 |
| #4 | Rose Peter Stanley | 6 |
| #5 | Powell Graham | 6 |
| #6 | Willis Maxwell Ralph | 5 |
| #7 | Khan Rizwan | 5 |
| #8 | Willis Maxwell | 5 |
| #9 | D Gama Siobhan | 5 |
| #10 | Fisher David | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB201402579D0 | Sampler unit | |
| GB201312886D0 | Measuring parameters of a cut gemstone | |
| GB201312888D0 | Measuring parameters of a cut gemstone | |
| EP2861965A1 | Infra-red analysis of diamonds | |
| AU2013223767A1 | Calibration of measuring instruments | |
| GB201204680D0 | Gemstone inspection | |
| GB201106878D0 | Automatic gemstone orientation apparatus | |
| CA2788068A1 | Gemstone sparkle analysis | |
| GB0919235D0 | Inclusion detection in polished gemstones | |
| GB0911989D0 | Gemstone alignment system |