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Chi-Tsao Chiang

📍 Zhubei City, TW: #657 of 1,506 inventorsTop 45%
Overall (All Time): #2,090,685 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8181311 Adjustable hinged door closer Jack Huang, Jason Jianzhong Chang 2012-05-22
6493904 Door closer — 2002-12-17