Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Cheng-feng Liu
Hsinchu County
TW
1 patent
2 Patents
US12342084
2025
Operation Method of Optical Sensor
Sensortek Technology Corp.
0 cites
US11882637
2024
Operation Method of Proximity Sensor
Sensortek Technology Corp.
0 cites