SL

Siu Yin Lam

HT Hoya Lens Thailand: 1 patents #5 of 35Top 15%
HU Hong Kong Polytechnic University: 1 patents #3 of 36Top 9%
Overall (2022): #256,040 of 548,613Top 50%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11397335 Spectacle lens Chi Ho To, Takashi Hatanaka, Yasutake Masuda 2022-07-26