Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6203867 | Product package having reliable openability | William J. Derkach, Bruce Kinsman | 2001-03-20 |
| 5829227 | Product package having reliable openability | William J. Derkach, Bruce Kinsman | 1998-11-03 |