Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662827 | Overpressure relief valve for packaging container | Teddy M. Westphal | 2003-12-16 |
| 6558306 | Multi-ply composite container with regions of weakened strength and method for manufacturing same | James W. Lowry, Manson Drew Case | 2003-05-06 |