Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868415 | Voltage level conversion circuit | — | 1989-09-19 |
| 4839769 | Driver protection circuit | David Henry Soo | 1989-06-13 |
| 4808839 | Power field effect transistor driver circuit for protection from overvoltages | Philip W. McEntarfer | 1989-02-28 |