Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5451361 | Process for upgrading low-quality wood | Herman P. Ruyter | 1995-09-19 |
| 5334445 | Cellulosic fibrous aggregate and a process for its preparation | Herman P. Ruyter, Jan Dekker | 1994-08-02 |