Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890069 | Gallium arsenide power monolithic microwave integrated circuit | Joseph M. Duffalo | 1989-12-26 |
| 4870478 | Dual-gate gallium arsenide power metal semiconductor field effect transistor | Charles E. Weitzel, Lalgudi M. G. Sundaram | 1989-09-26 |