Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7351190 | Method of constructing a folder system | Dave Hamilton, Frank Dlugosz, Calvin Mueller | 2008-04-01 |
| 7303524 | Folder unit for processing sheet-like materials | Dave Hamilton, Frank Dlugosz, Calvin Mueller | 2007-12-04 |