Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7943008 | Method of pre-treating woodchips prior to mechanical pulping | Ventzislav H. Kirov, Bryan L. Sorensen | 2011-05-17 |
| 7771565 | Method of pre-treating woodchips prior to mechanical pulping | Ventzislav H. Kirov, Bryan L. Sorensen | 2010-08-10 |
| 4209359 | Process for removing residual oxygen from oxygen-bleached pulp | — | 1980-06-24 |