CT

Cheng Yuan Tseng

Overall (2002): #70,303 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6422251 Umbrella having a simplified configuration 2002-07-23
6418950 Umbrella having a rotation prevention mechanism 2002-07-16