Inventor
CHANG CHENG-FEN
TW3 patents
Patents
3 patentsUS8044599B2Oct 25, 2011
Light string with alternate LED lamps and incandescent lamps
CHANG CHU-CHENG4 citations55
US7597454B2Oct 6, 2009
Christmas light string with socket for connecting to another christmas light string
CHANG CHU-CHENG2 citations55
US8053995B2Nov 8, 2011
LED light string without additional resistors
CHANG CHU-CHENG1 citations45