JT

Jeng-Da Tsai

EX ExxonMobil: 1 patents #253 of 735Top 35%
Overall (2011): #267,702 of 364,097Top 75%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8051920 Impact drill Kim Y. C. Tsai, Cheng-I Teng 2011-11-08