CH

Changjun He

P( Polygroup Macau Limited (Bvi): 1 patents #9 of 20Top 45%
Overall (2020): #518,518 of 565,922Top 95%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10533738 Systems and methods for water-resistant lamp holders Chi Yin Alan Leung, Chi Kin Samuel Kwok 2020-01-14