DB

David E. Brann

General Motors: 2 patents #6,250 of 18,328Top 35%
📍 Lemont, IL: #82 of 212 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,340,927 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4643079 Iron piston having selectively hardened ring groove James Lindsay 1987-02-17
4502422 High output oil cooled floating piston — 1985-03-05