Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6168847 | Pre-folded stock material for use in a cushioning conversion machine | Richard O. Ratzel | 2001-01-02 |
| 6015374 | Compact cushioning conversion machine and method using pre-folded paper | Richard O. Ratzel | 2000-01-18 |