Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8454796 | Manufacture of filled paper | — | 2013-06-04 |
| 8304533 | Cationic polysaccharide, its preparation and use | Asko Karppi, Bengt-Erik Knubb | 2012-11-06 |
| 8168040 | Manufacture of paper or paperboard | — | 2012-05-01 |
| 7691934 | High molecular weight poly(dially dialkyl) ammonium salts | Zhiqiang Song, George W. Schriver | 2010-04-06 |