Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889821 | Method of manufacturing a semiconductor device of the hetero-junction bipolar transistor type | Daniel Selle | 1989-12-26 |
| 4889824 | Method of manufacture semiconductor device of the hetero-junction bipolar transistor type | Daniel Selle, Patrick Rabinzohn | 1989-12-26 |