Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872942 | Seal bar including clamped seal element | Eric A. St. Phillips | 1989-10-10 |
| 4859822 | Microwaveable container | James J. Ragusa | 1989-08-22 |
| 4834924 | Extrusion apparatus for tubular thermoplastic films including two (tandem) spaced air rings for controlling cooling rate and production speeds | Lynne M. D'Annunzio, Eric A. St. Phillips | 1989-05-30 |