John Welsh

CU Columbia University: 1 patents #6 of 39Top 20%

📍 New York, NY: #94 of 482 inventorsTop 20%

🗺 New York: #1,258 of 5,342 inventorsTop 25%

Overall (1989): #92,196 of 140,708Top 70%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4868311	Biotinylated psoralens	Wilma A. Saffran, Richard L. Edelson, Francis P. Gasparro, Charles R. Cantor	1989-09-19