ZM

ZHENGFANG MA

Overall (All Time): #1,875,464 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10984383 Book information collaboration system and method 2021-04-20
10445660 Learning apparatus in digital environment Hong Z. Tan 2019-10-15