Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5804284 | Paperboard for manufacturing single-layer paperboard tube-forming plies | Jerry S. Hall, Kevin Merritt, Henry L. King | 1998-09-08 |
| 5586963 | Single-ply paperboard tube and method of forming same | James R. Martin, Charles D. Anderson | 1996-12-24 |
| 5573638 | Paperboard for manufacturing single-layer paperboard tube-forming plies | Jerry S. Hall, Kevin Merritt, Henry L. King | 1996-11-12 |
| 5106356 | Method and apparatus for the manufacture of paperboard tubes having controlled outside diameter | David E. Rhodes, Philip G. Hart | 1992-04-21 |