Inventor

LIU YU-SHAN

TW2 patents

⚠️ This page may combine multiple inventors who share the name “LIU YU-SHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ABLEREX ELECTRONICS CO LTD

1 patent

US7398336B2Jul 8, 2008

Switching device for RS-232 serial port and USB serial port

ABLEREX ELECTRONICS CO LTD23 citations87

BIOPTIK TECH INC

1 patent

US10973779B2Apr 13, 2021

Astaxanthin compound composition and the method thereof

BIOPTIK TECH INC0 citations47