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Chia-Kan Chang

SC Sintai Optical (Shenzhen) Co.: 3 patents #2 of 32Top 7%
AC Asia Optical Co.: 3 patents #5 of 24Top 25%
Overall (2019): #95,840 of 560,194Top 20%
3
Patents 2019

Issued Patents 2019

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10495415 Sight Hung-Chi Chou, Sung-Po Cheng 2019-12-03
10466735 Knob structure Tsung-Mou Tsai 2019-11-05
10180698 Knob structure Tsung-Mou Tsai 2019-01-15