Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7892398 | Sizing of paper | Hans Johansson-Vestin, Jonas Liesén, Marie Turunen | 2011-02-22 |
| 4476323 | Surface-active quaternary ammonium compounds for treatment of textiles and cellulosic materials | Karl M. E. Hellsten, Svante Wåhlen, Axel I. Thebrin | 1984-10-09 |
| 4341597 | Fibrous material having good dimensional and heat stability | Arne Andersson, Ingemar Johansson, Svante Wåhlen | 1982-07-27 |