JE

John F. Ewen

IBM: 2 patents #86 of 1,444Top 6%
📍 Rochester, MN: #4 of 81 inventorsTop 5%
🗺 Minnesota: #129 of 2,022 inventorsTop 7%
Overall (1989): #23,980 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4833425 Analog macro embedded in a digital gate array Edward F. Culican, John D. Davis, Scott A. Mc Cabe, Joseph M. Mosley, Allan L. Mullgrav, Jr. +3 more 1989-05-23
4831284 Two level differential current switch MESFET logic Carl J. Anderson 1989-05-16