Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6649023 | Process for digesting woodchips and digester additives | George K. Wai | 2003-11-18 |
| 6551452 | Process for digesting woodchips and digester additives | George K. Wai | 2003-04-22 |