DC

Donald L. Chamberlain

FM Freeport Minerals: 2 patents #38 of 67Top 60%
📍 Baton Rouge, LA: #757 of 1,896 inventorsTop 40%
🗺 Louisiana: #3,194 of 10,876 inventorsTop 30%
Overall (All Time): #2,334,900 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4721566 Tilting pan filters and cam therefor Robert J. Sweeney 1988-01-26
4675107 Tilting pan filters — 1987-06-23