DH

David J. Hazen

Ford: 2 patents #39 of 650Top 6%
📍 Ann Arbor, MI: #40 of 327 inventorsTop 15%
🗺 Michigan: #358 of 4,492 inventorsTop 8%
Overall (1997): #43,068 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5640941 Internal combustion engine with stratified charge and tumble motion Gordon W. Sweetnam 1997-06-24
5596960 Internal combustion engine — 1997-01-28