EY

Esther K. Yang

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): #2,297,886 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5362627 Stabilization and reduction of background fluorescence of hydroxy coumarin ester enzyme substrates Richard A. Blumenthal, Hon-Peng P. Lau 1994-11-08
4661408 Coated chromium dioxide particles Hon-Peng P. Lau, Howard W. Jacobson 1987-04-28