Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643414 | Silica sols in papermaking | Hans Johansson | 1997-07-01 |
| 5603805 | Silica sols and use of the sols | Kjell Andersson, Erik Lindgren | 1997-02-18 |
| 5447604 | Silica sols, a process for the production of silica sols and use of the sols | Hans Johansson | 1995-09-05 |
| 5368833 | Silica sols having high surface area | Hans Johansson | 1994-11-29 |
| 4961825 | Papermaking process | Kjell Andersson, Bernt Larsson, Hans-Olof Thoresson | 1990-10-09 |