YC

Ya-Ching CHAN

UN Unknown: 2 patents #12,644 of 83,584Top 20%
Overall (All Time): #1,310,589 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12276109 Ventilation assembly — 2025-04-15
12186603 Waterproof driving shaft for a ventilation apparatus — 2025-01-07
9772114 Heat dissipating structure for an iron-sheet house — 2017-09-26