Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8322549 | Twist off crown | William E Perkins | 2012-12-04 |
| D587579 | Twist off crown closure | William E Perkins | 2009-03-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8322549 | Twist off crown | William E Perkins | 2012-12-04 |
| D587579 | Twist off crown closure | William E Perkins | 2009-03-03 |