Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032223 | Procedure for determining and controlling the composition proportions of wood chip mixes in alkaline pulp digestion processes | Raimo Alen, Pasi Hentunen, Leena Paavilainen, Taina Sopenlehto-Pehkonen, Olavi Sundstrom | 1991-07-16 |
| 4944841 | Procedure for controlling alkaline pulping processes | Alen Raimo | 1990-07-31 |