CC

Chien-Tsan Chan

Overall (All Time): #1,792,979 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11684145 Built-in toothpaste type toothbrush structure 2023-06-27
11541923 Wheel-at-rest automatic brake structure 2023-01-03