ES

Earl Stephans

IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #4,107,568 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4191938 Cermet resistor trimming method John Gow, 3rd, Herman S. Hoffman 1980-03-04