Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292385 | Gemstone colour grading process and grading system | Wing Yan Lee, Chun Yan Dominique Lau, Wing Chi TANG, Ka Wing Cheng, Ching Tom KONG +1 more | 2025-05-06 |
| 12181653 | Flip-to-side mount and magnifier optic | Rui Gao, Yunbo Hu | 2024-12-31 |
| 11879859 | Process for determining the type of a diamond | Ka Wing Cheng, Yau Chuen YIU, Kong CHAN, Chun Hong SHAM, Koon Chung HUI | 2024-01-23 |
| 11835466 | Diamond clarity measurement process and system | Ka Wing Cheng, Kin Wing Wong, Kong CHAN, Wing Chi TANG, Koon Chung HUI | 2023-12-05 |
| 11532538 | Component structure, power module and power module assembly structure | Shouyu Hong, Tao Wang, Zhenqing Zhao | 2022-12-20 |
| 11490516 | Power module structure | Shouyu Hong, Haibin Xu, Wei Cheng, Tao Wang, Zhenqing Zhao | 2022-11-01 |
| 11098166 | Degradable hyperbranched epoxy resin and preparation method thereof | Daohong Zhang, Yeyun Liang, Junheng Zhang, Aiqing Zhang | 2021-08-24 |
| 11016033 | Diamond clarity measurement process and system | Ka Wing Cheng, Kin Wing Wong, Kong CHAN, Wing Chi TANG, Koon Chung HUI | 2021-05-25 |
| 10808071 | Degradable sulfur-containing hyperbranched epoxy resin and preparation method thereof | Daohong Zhang, Wenqiang Guo, Junheng Zhang, Aiqing Zhang, Jinlin Li | 2020-10-20 |
| 10762666 | Colour grading process and system for diamonds | Ka Wing Cheng, Kin Wing Wong, Kong CHAN, Wing Chi TANG, Koon Chung HUI | 2020-09-01 |
| 10720378 | Component structure, power module and power module assembly structure | Shouyu Hong, Tao Wang, Zhenqing Zhao | 2020-07-21 |
| 10211579 | Power plug | Wenting Zhu, Guoxin Wu, Nan Luo, Quangang Zhang, Bowei Lu +5 more | 2019-02-19 |
| 10097103 | Power conversion module with parallel current paths on both sides of a capacitor | Shouyu Hong, Tao Wang, Zhenqing Zhao | 2018-10-09 |