Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4893452 | Method for making a tamper-evident, differential pressure-thermoformed lidded plastic container | Robert Bruce | 1990-01-16 |
| 4836407 | Tamper-evident, differential pressure-thermoformed lidded plastic container | Robert Bruce | 1989-06-06 |