David A. Kaufmann

📍 Gambrills, MD: #37 of 71 inventorsTop 55%

🗺 Maryland: #19,431 of 35,612 inventorsTop 55%

Overall (All Time): #3,867,612 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4984384	Bio-degradable mulching material	—	1991-01-15