DD

Douglas Ward Donigian

📍 Baltimore, MD: #39 of 212 inventorsTop 20%
🗺 Maryland: #369 of 1,889 inventorsTop 20%
Overall (1997): #158,609 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5643631 Ink jet recording paper incorporating novel precipitated calcium carbonate pigment Robert Kenneth Resnik, Michael Gregory McFadden 1997-07-01