Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808543 | Well Extensions for trench devices | Louis C. Parrillo, John M. Barden | 1989-02-28 |
| 4808555 | Multiple step formation of conductive material layers | Stephen J. Cosentino, Louis C. Parrillo, Patrick J. Holly | 1989-02-28 |