Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5538632 | Multiple filter dynamic washer | William A. Gero, Goda Rangamannar | 1996-07-23 |
| 4891099 | Apparatus for secondary fibre processing | Stavros Paraskevas | 1990-01-02 |
| 4812205 | Process for secondary fibre processing | Stavros Paraskevas | 1989-03-14 |
| 4548673 | Method and apparatus for deinking | Ashok K. Nanda, Michael A. McCool | 1985-10-22 |