DF

Doug R. Farrenkopf

NS National Semiconductor: 3 patents #635 of 2,238Top 30%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,650,318 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5397934 Apparatus and method for adjusting the threshold voltage of MOS transistors Richard B. Merrill 1995-03-14
5296409 Method of making n-channel and p-channel junction field-effect transistors and CMOS transistors using a CMOS or bipolar/CMOS process Richard B. Merrill 1994-03-22
5276582 ESD protection using npn bipolar transistor Richard B. Merrill, David C. Reynolds 1994-01-04