CC

Chien-Tsan Chan

Overall (2023): #168,454 of 537,848Top 35%
2
Patents 2023

Issued Patents 2023

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