YS

Ying K. Shum

NS National Semiconductor: 3 patents #635 of 2,238Top 30%
SS Sierra Semiconductor: 2 patents #7 of 23Top 35%
📍 Cupertino, CA: #2,618 of 6,989 inventorsTop 40%
🗺 California: #106,790 of 386,348 inventorsTop 30%
Overall (All Time): #1,058,556 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5188972 Method for making bipolar transistor by self-aligning the emitter to the base contact diffusion Sik Lui 1993-02-23
4780750 Electrically alterable non-volatile memory device Joseph G. Nolan, III, Michael A. Van Buskirk, Te-Long Chiu 1988-10-25
4538246 Nonvolatile memory cell Samuel T. Wang, Chenming Hu 1985-08-27
4477825 Electrically programmable and erasable memory cell Giora Yaron, Ury Priel, Jayasimha Prasad, Mark S. Ebel 1984-10-16
4257056 Electrically erasable read only memory 1981-03-17