RH

Robert D. Humphries

📍 Edgewood, MD: #96 of 191 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,683,637 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5749936 Method of producing dry granular fertilizer and soil amendments using clay slurry and dry chemicals Delbert R. Dreese, Louis L. Taylor, Dennis Parker 1998-05-12