KC

Ka Wing Cheng

GL Goldway Technology Limited: 8 patents #1 of 13Top 8%
ML Master Dynamic Limited: 1 patents #7 of 13Top 55%
Overall (All Time): #535,930 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12292385 Gemstone colour grading process and grading system Wing Yan Lee, Juan CHENG, Chun Yan Dominique Lau, Wing Chi TANG, Ching Tom KONG +1 more 2025-05-06
12030217 Method of marking a diamond, markings formed from such methods and diamonds marked according to such method Yau Chuen YIU, Koon Chung HUI 2024-07-09
11879859 Process for determining the type of a diamond Yau Chuen YIU, Kong CHAN, Chun Hong SHAM, Juan CHENG, Koon Chung HUI 2024-01-23
11835466 Diamond clarity measurement process and system Kin Wing Wong, Kong CHAN, Juan CHENG, Wing Chi TANG, Koon Chung HUI 2023-12-05
11467101 System for ascertaining optical characteristics of gemstone Koon Chung HUI 2022-10-11
11326952 Process and system for colour grading for diamonds Koon Chung HUI, Wing Chi TANG 2022-05-10
11137355 Process and system for diamond clarity measurement Koon Chung HUI, Wing Chi TANG 2021-10-05
11016033 Diamond clarity measurement process and system Kin Wing Wong, Kong CHAN, Juan CHENG, Wing Chi TANG, Koon Chung HUI 2021-05-25
10762666 Colour grading process and system for diamonds Kin Wing Wong, Kong CHAN, Juan CHENG, Wing Chi TANG, Koon Chung HUI 2020-09-01