Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8460446 | Production of acidic polysilicate products and their application to strengthen wooden structures | — | 2013-06-11 |
| 4710270 | Paper making process utilizing fillers with hardened envelopes of cationic starch | Agneta Byléhn Sundén | 1987-12-01 |
| 4388150 | Papermaking and products made thereby | Per G. Batelson, Hans Johansson, Hans M. Larsson, Per Svending | 1983-06-14 |
| 4294885 | Surface-modified pigment of natural kaolin material and a process of producing same | — | 1981-10-13 |
| 4200548 | Silicic acid detergent product for microdeposition of silicic acid on textiles | Hans Johansson, Hakan B. Ahlberg, Per-Arne I. Karlsson | 1980-04-29 |
| 4183783 | Semisynthetic paper structure on a urea basis | Birgitta Sunden | 1980-01-15 |