Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852062 | EPROM device using asymmetrical transistor characteristics | James R. Pfiester, Charles Frederick Hart | 1989-07-25 |
| 4811066 | Compact multi-state ROM cell | James R. Pfiester | 1989-03-07 |
| 4801555 | Double-implant process for forming graded source/drain regions | Patrick J. Holly, Louis C. Parrillo | 1989-01-31 |