YC

Ya-Ching CHAN

UN Unknown: 1 patents #232 of 2,491Top 10%
Overall (2025): #74,847 of 469,880Top 20%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12276109 Ventilation assembly 2025-04-15
12186603 Waterproof driving shaft for a ventilation apparatus 2025-01-07