SH

Shiyan Hua

AT AT&T: 1 patents #483 of 1,668Top 30%
📍 Wheaton, IL: #25 of 90 inventorsTop 30%
🗺 Illinois: #1,486 of 5,836 inventorsTop 30%
Overall (2002): #118,847 of 266,432Top 45%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6356630 Telephone calling card service system integrating virtual destination numbers Yigang Cai 2002-03-12