TC

Tien-Cheng Chen

Overall (2002): #38,149 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6481450 Handle mechanism for an automatic multiple-folded umbrella 2002-11-19
6338353 Self-opening and foldable umbrella 2002-01-15