Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7097738 | Process for producing pulp | Esa Rousu, Juha Anttila, Päivi Rousu | 2006-08-29 |
| 6955743 | Method for producing furfural, acetic acid and formic acid from spent pulp-cooking liquor | Esa Rousu, Juha Anttila, Juha Tanskanen, Päivi Rousu | 2005-10-18 |
| 6923888 | Process for recovering organic acids from bleaching liquors | Päivi Rousu, Esa Rousu, Juha Anttila | 2005-08-02 |
| 6562191 | Process for producing pulp with a mixture of formic acid and acetic acid as cooking chemical | Päivi Rousu, Esa Rousu | 2003-05-13 |
| 6503369 | Process for producing cellulose and fertilizer by-product | Päivi Rousu, Esa Rousu | 2003-01-07 |
| 6252109 | Method for the recovery of formic acid | Juha Anttila, Esa Rousu | 2001-06-26 |
| 6156156 | Method of producing pulp using single-stage cooking with formic acid and washing with performic acid | Päivi Rousu, Esa Rousu | 2000-12-05 |