ED

Edward L. Derrenbacker

MA Mallinckrodt: 2 patents #164 of 489Top 35%
📍 Chesterfield, MO: #2,561 of 6,461 inventorsTop 40%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,357,421 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4440954 Process for the purification of p-aminophenol William Rex CLINGAN, Thomas J. Dunn 1984-04-03
4307249 Process for the selective preparation of p-aminophenol from nitrobenzene 1981-12-22