Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806997 | Double heterostructure optoelectronic switch | John G. Simmons | 1989-02-21 |
| 4800415 | Bipolar inversion channel device | John G. Simmons | 1989-01-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806997 | Double heterostructure optoelectronic switch | John G. Simmons | 1989-02-21 |
| 4800415 | Bipolar inversion channel device | John G. Simmons | 1989-01-24 |