CL

Charles L. Leen

📍 Grand Rapids, MI: #715 of 1,824 inventorsTop 40%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,308,001 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5098584 Method for separating oils from scum — 1992-03-24
4378229 Method for treating sewage to produce a fuel — 1983-03-29