Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860068 | Semiconductor devices and methods of making such devices | Robert C. Miller, Pierre M. Petroff | 1989-08-22 |
| 4849799 | Resonant tunneling transistor | Federico Capasso, Harry T. French, Albert Lee Hutchinson, Richard A. Kiehl, Sustana Sen | 1989-07-18 |