Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888459 | Microwave container with dielectric structure of varying properties and method of using same | — | 1989-12-19 |
| 4866234 | Microwave container and method of making same | — | 1989-09-12 |
| 4831224 | Package of material for microwave heating including container with stepped structure | — | 1989-05-16 |
| 4814568 | Container for microwave heating including means for modifying microwave heating distribution, and method of using same | — | 1989-03-21 |