DH

David Lawrence Hasfjord

DD Detroit Diesel: 1 patents #85 of 181Top 50%
📍 Dearborn, MI: #886 of 1,494 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,396,620 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
RE39845 Maintenance alert system for heavy-duty trucks Richard M. Avery, Jr., Dennis M. Letang, James A. Gray, Donald M. McDonald, Marleen F. Thompson +2 more 2007-09-18