Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890020 | Circuit for driving a semiconductor device with protection against transients | — | 1989-12-26 |
| 4885477 | Differential amplifier and current sensing circuit including such an amplifier | Desmond R. Armstrong | 1989-12-05 |