Inventor

LIU HSING-KUEI

TW3 patents

Patents

3 patents

US8388180B2Mar 5, 2013

Variable shaped lamp shade of LED lamp

CHANG CHIH-YANG19 citations89

US8757835B2Jun 24, 2014

Variable shaped lamp shade of LED lamp

CHANG CHIH-YANG6 citations81

US8757834B2Jun 24, 2014

Variable shaped lamp shade of LED lamp

CHANG CHIH-YANG6 citations81