YC

Ying Cheung

📍 Sha Tin, CN: #514 of 2,424 inventorsTop 25%
Overall (All Time): #1,482,854 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10072823 Laser-pointing device — 2018-09-11
9581315 Laser-pointing device — 2017-02-28
D316617 Combined toothpick and flosser — 1991-04-30