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Yiu Cho Yuen

DL Defond Componets Limited: 1 patents #9 of 12Top 75%
DC Defond Electech Co.: 1 patents #9 of 12Top 75%
Overall (2022): #199,894 of 548,613Top 40%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11489523 Touch control human machine interface Cheng Chen Nieh, Kai Kei Poon 2022-11-01