Youfeng Chen

OC Opple Lighting Co.: 1 patents #16 of 42Top 40%

Overall (2019): #212,365 of 560,194Top 40%

Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10487989	LED lighting device	LIANG-LIANG CAO	2019-11-26