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Stephen Yee Hung Yau

Overall (All Time): #1,833,691 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11235228 Board game apparatus and method of playing the same Renato Sasdelli 2022-02-01
6173471 Structure of a brush 2001-01-16