DY

David L. Yarbrough

AT AT&T: 1 patents #10,626 of 18,772Top 60%
Overall (All Time): #3,358,924 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7388947 Controllable telecommunications switch reporting compatible with voice grade lines David B. Smith, Matthew R. Smith, Eric Edward Kampmeier, Simon Oh, Thomas Loos 2008-06-17