DM

David F. Ma

IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #3,464,804 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6975986 Voice spelling in an audio-only interface Matthew Hartley, James R. Lewis 2005-12-13