Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
PB

Phillip R. Barrett

Microsoft: 1 patents #24,826 of 40,388Top 65%
Redmond, WA: #5,761 of 8,547 inventorsTop 70%
Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #3,916,142 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4974159 Method of transferring control in a multitasking computer system Richard R. Hargrove, Ralph Lipe, Aaron R. Reynolds, Marc D. Wilson 1990-11-27