EK

Ewald Kerkhoff

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Ann Arbor, MI: #2,859 of 6,071 inventorsTop 50%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,276,759 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5494133 Controlled weight-lowering device Kenneth L. Green, David Call 1996-02-27
4879920 Antibacklash gears including rack and pinion gears — 1989-11-14