Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292385 | Gemstone colour grading process and grading system | Juan CHENG, Chun Yan Dominique Lau, Wing Chi TANG, Ka Wing Cheng, Ching Tom KONG +1 more | 2025-05-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292385 | Gemstone colour grading process and grading system | Juan CHENG, Chun Yan Dominique Lau, Wing Chi TANG, Ka Wing Cheng, Ching Tom KONG +1 more | 2025-05-06 |