CH

Chung-Hsien Hsieh

📍 New Taipei, TW: #302 of 1,901 inventorsTop 20%
Overall (2021): #173,540 of 548,734Top 35%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11111723 Door operator with high-speed operation and fire escape functions — 2021-09-07
10947771 Control system for fire door and a door operator having the same — 2021-03-16