RD

Roy DeFrain

AT AT&T: 1 patents #10,626 of 18,772Top 60%
Overall (All Time): #3,339,200 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7609823 High capacity advanced 8YY mass calling event network architecture Todd R. Bermudez, James Caldwell, Danny Chism, Andrew Grigg, Kirk Warrenburg +1 more 2009-10-27