DM

David C. McChristian

AT AT&T: 1 patents #283 of 1,203Top 25%
📍 Naperville, IL: #60 of 205 inventorsTop 30%
🗺 Illinois: #1,298 of 5,218 inventorsTop 25%
Overall (2005): #215,744 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6856674 Platform for prepaid calling card calls Nicholas D. De Trana, Craig L. DeCaluwe, Hossein Eslambolchi, Paul Greendyk 2005-02-15