Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937413 | Acoustic sensor assembly for a microwave oven | Charles W. McDonald, Michael J. Hodgetts | 1990-06-26 |
| 4873409 | Closed-loop microwave popcorn control | Charles W. McDonald, Michael J. Hodgetts | 1989-10-10 |