DR

Dwight E. Raff

NO Noramco: 1 patents #1 of 2Top 50%
📍 West Chester, PA: #13 of 58 inventorsTop 25%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #118,573 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4870209 Process for purifying crude 4-aminophenol James Kao 1989-09-26