AW

Alfred T. Walker

EA E.I. Du Pont De Nemours And: 4 patents #1,770 of 8,010Top 25%
📍 New Garden Township, PA: #41 of 150 inventorsTop 30%
🗺 Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,234,095 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8257619 Lead-free resistive composition Marc H. Labranche, Kenneth Warren Hang, Yuko Ogata 2012-09-04
8226857 Non-lead resistor composition Paul Douglas Vernooy, Kenneth Warren Hang 2012-07-24
7951311 Non-lead resistor composition Paul Douglas Vernooy, Kenneth Warren Hang 2011-05-31
7608206 Non-lead resistor composition Paul Douglas Vernooy, Kenneth Warren Hang 2009-10-27