PD

Peter J. Duffy

IBM: 2 patents #32,839 of 70,183Top 50%
Overall (All Time): #1,928,963 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10198472 Outer join optimizations in database management systems Pedro M. Barbas, Lei Pan, David M. Tilson 2019-02-05
10127277 Outer join optimizations in database management systems Pedro M. Barbas, Lei Pan, David M. Tilson 2018-11-13