JD

Johanne C. Dickinson

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
📍 Wilmington, DE: #1,519 of 3,182 inventorsTop 50%
🗺 Delaware: #3,234 of 7,163 inventorsTop 50%
Overall (All Time): #2,358,912 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4477346 Method for the removal of interfering substances in theophylline assays William A. Frey 1984-10-16
4460695 Method for the removal of interfering substances, including caffeine, in theophylline assays William A. Frey 1984-07-17