WC

Warren A. Christopherson

IBM: 3 patents #26,272 of 70,183Top 40%
📍 San Jose, CA: #14,517 of 32,062 inventorsTop 50%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,684,879 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4346312 Integrated semiconductor current driver circuitry — 1982-08-24
4270092 Current controlling circuitry for logical circuit reference electric level circuitry — 1981-05-26
4194135 Electronic signal level translating circuitry — 1980-03-18