Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919285 | Tamper evident closure and method of manufacture of the same | William M. Roof, Eric Jason Roberts | 1990-04-24 |
| 4600131 | Pourout fitment/closure | William M. Roof | 1986-07-15 |