DD

Derek J. Day

Nortel Networks Limited: 2 patents #1,531 of 5,294Top 30%
VA Varian: 2 patents #151 of 684Top 25%
📍 Malvern, GB: #1 of 1 inventorsTop 100%
Overall (All Time): #1,053,506 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5631470 Liquid ion chamber electrode apparatus Reza Majidi-Ahy, Willi Fencl, Heinrich Riem, Salvatore Provencale, Rolf Staehelin 1997-05-20
5594252 Three terminal ion chambers Rolf Stahelin, Salvatore Provenzale, Heinrich Riem, Willi Fencl 1997-01-14
5012301 Three terminal semiconductor device Jingming Xu, Mark A. Sweeney 1991-04-30
4950924 High speed noise immune bipolar logic family William A. HAGLEY, Jingming Xu 1990-08-21
4231052 Apparatus for parallel-in to serial-out conversion Charles Thomas Elliot 1980-10-28