Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791495 | Paper pulp screen cylinder | William A. Gero, Stephen G. W. Munro | 1998-08-11 |
| 4783014 | Disk refiner having sliding rigid multiple disks | Borje Fredriksson | 1988-11-08 |
| 4614309 | Rigid link multiple disk refiner | — | 1986-09-30 |
| 4586662 | Flexible spoke rotor for multiple disk refiner | George J. Neuf, Edward C. Kirchner | 1986-05-06 |