PX

Peiyuan Xu

Overall (All Time): #1,551,454 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8191296 Elevating billboard and control method thereof — 2012-06-05
8156672 Stormproof billboard and control method thereof — 2012-04-17
7950174 Windproof billboard — 2011-05-31