ED

Elmer A. Derr

📍 Richland, PA: #6 of 10 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,560,471 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6464746 Homogeneous granules of slow-release fertilizer and method of making the same Gary B. Neyman 2002-10-15