Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870025 | Method of sensing methane gas-I | Michael D. Hurley, Eleftherios M. Logothetis | 1989-09-26 |
| 4823004 | Tunnel and field effect carrier ballistics | L. Douglas Bell | 1989-04-18 |