Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344573 | Method of recovery of printing ink wastes | Alan M. Hill, Michael D. Cain | 1994-09-06 |
| 5200094 | Method of recovery of printing ink wastes using elevated temperature, pressure and shear | Alan M. Hill, Michael D. Cain | 1993-04-06 |