DB

Dick Allen Barkman

DD Detroit Diesel: 1 patents #85 of 181Top 50%
📍 Royal Oak, MI: #837 of 1,428 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,539,337 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6363894 Diesel engine having a cylinder liner with improved cooling characteristics — 2002-04-02