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

Edward E. Durham

General Motors: 1 patents #9,361 of 18,328Top 55%
Utica, MI: #157 of 298 inventorsTop 55%
Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,028,684 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4428343 Tip-in knock eliminating spark timing control John F. Schweikert, David Grossman 1984-01-31