DS

Douglas E. Shafer

📍 Gambrills, MD: #37 of 71 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,592,985 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6284250 Simplified method for removing free protein during preparation of protein-polysaccharide conjugates and vaccines using restricted-access media Andrew Lees 2001-09-04