SM

Sheau-Hwa Ma

EA E.I. Du Pont De Nemours And: 4 patents #8 of 718Top 2%
📍 West Chester, PA: #4 of 76 inventorsTop 6%
🗺 Pennsylvania: #92 of 4,234 inventorsTop 3%
Overall (1994): #4,531 of 165,921Top 3%
4
Patents 1994

Issued Patents 1994

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5306756 Method and compositions for diffusion patterning John James Felten 1994-04-26
5302197 Ink jet inks Palitha Wickramanayke 1994-04-12
5292556 Method for preparing negative-working wash-off relief images Andrew E. Matthews 1994-03-08
5275689 Method and compositions for diffusion patterning John James Felten, Walter R. Hertler 1994-01-04