Inventor

CHENG CHING-CHENG

TW2 patents

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

CHICONY ELECTRONICS CO LTD

1 patent

US6971807B2Dec 6, 2005

Waterproof keyboard

CHICONY ELECTRONICS CO LTD23 citations87

CHENG CHING CHENG

1 patent

US10172382B2Jan 8, 2019

Bean roasting device

CHENG CHING CHENG0 citations25