Inventor
CHANG YI-CHIEH
TW11 patents
⚠️ This page may combine multiple inventors who share the name “CHANG YI-CHIEH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHANG YI-CHIEH
5 patentsUS8059391B2Nov 15, 2011
Portable electronic device
CHANG YI-CHIEH21 citations89
US8324547B2Dec 4, 2012
Solar tracking and concentration device
CHANG YI-CHIEH7 citations81
US8129668B2Mar 6, 2012
Solar tracking and concentration device
CHANG YI-CHIEH8 citations81
US8097803B2Jan 17, 2012
Solar energy system
CHANG YI-CHIEH3 citations60
US8060938B2Nov 15, 2011
Proprietary portable audio player system for protecting digital content copyrights
CHANG YI-CHIEH3 citations60