Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803172 | Method of manufacturing thyristor with integrated power supply for an associated circuit | — | 1989-02-07 |
| 4801554 | Process for manufacturing a power semiconductor component | Jens Gobrecht, Peter Roggwiller, Jan Voboril | 1989-01-31 |