EC

Elmer Chi Hang Cheng

P( Polygroup Macau Limited (Bvi): 2 patents #4 of 11Top 40%
📍 Nørresundby, DK: #6 of 90 inventorsTop 7%
Overall (2018): #152,008 of 503,207Top 35%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10143322 Universal tree stand systems and methods Victor Hugo Ocegueda Gallaga, Yifeng Zhang 2018-12-04
10113361 Safety mechanical barrier and system for above-ground pool ladders Victor Ocegueda, Dong Xu 2018-10-30