Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4913775 | Production of paper and paper board | John Langley | 1990-04-03 |
| 4753710 | Production of paper and paperboard | John Langley | 1988-06-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4913775 | Production of paper and paper board | John Langley | 1990-04-03 |
| 4753710 | Production of paper and paperboard | John Langley | 1988-06-28 |