Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4609432 | Method of making paper having improved tearing strength | — | 1986-09-02 |
| 4347100 | Strength of paper from mechanical or thermomechanical pulp | — | 1982-08-31 |
| 4311552 | Deinking of newsprint | Richard J. Brooks | 1982-01-19 |