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USPTO Patent Rankings Data through Sept 30, 2025
AF

Alan B. Fowler — 8 Patents

IBM: 8 patents #13,150 of 70,183Top 20%
Yorktown Heights, NY: #291 of 858 inventorsTop 35%
New York: #18,046 of 115,490 inventorsTop 20%
Overall (All Time): #670,913 of 4,157,543Top 20%
8 Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4942437 Electron tuned quantum well device Gregory Timp 1990-07-17
4811077 Compound semiconductor surface termination John L. Freeouf, Peter D. Kirchner, Alan C. Warren, Jerry M. Woodall 1989-03-07
4672423 Voltage controlled resonant transmission semiconductor device Allan M. Hartstein 1987-06-09
4587709 Method of making short channel IGFET Allan M. Hartstein 1986-05-13
4550330 Semiconductor interferometer 1985-10-29
4396931 Tunnel emitter upper valley transistor William P. Dumke 1983-08-02
4389768 Self-aligned process for fabricating gallium arsenide metal-semiconductor field effect transistors Robert Rosenberg, Hans Rupprecht 1983-06-28
4293374 High aspect ratio, high resolution mask fabrication Praveen Chaudhari, Ned J. Chou, Ralph Feder, James A. VanVechten 1981-10-06