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

David Allen Hefner

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): #3,318,101 of 4,157,543Top 80%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7493597 System and method for model based generation of application programming interface test code 2009-02-17