JE

John D. Engfehr

Ford: 1 patents #9,341 of 17,473Top 55%
📍 Wyandotte, MI: #80 of 159 inventorsTop 55%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,514,689 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6580366 System and method for evaluating automotive vehicle oil deterioration — 2003-06-17