Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8322549 | Twist off crown | Robert H Bourque | 2012-12-04 |
| D587579 | Twist off crown closure | Robert H Bourque | 2009-03-03 |
| 5827925 | Polymeric drug delivery system | Samuel J. Tremont, Paul W. Collins, Peter Hadley Jones | 1998-10-27 |