HC

Hua Chen

CC Crastal Technology (Shenzhen) Co.: 1 patents #5 of 6Top 85%
Overall (All Time): #1,717,830 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12325258 Electric pencil sharpener with delay function Weidong Qiu, Kai Xu 2025-06-10
6868775 Bread toaster with motor-driven toast rack 2005-03-22