Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749722 | Method of making sized paper, a sized paper grade, and a paper size | Olof Malmstrom, Markku Nurminen, Ari Teijo, Claes Zetter | 2004-06-15 |
| 5939562 | Alkenyl substituted cyclic carboxyl acid anhydrides and their application in hydrophobic paper sizing | Mika Kapanen, Salme Koskimies, Jaana Rantanen, Erkki Halme | 1999-08-17 |