Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923979 | Cellulose carbamate products of lowered carbamate content | Jan Fors, Leo Mandell, Kerstin Meinander, Johan-Fredrik Selin, Olli Turunen | 1990-05-08 |
| 4906521 | Non-woven fibre product | Olli Turunen, Kerstin Meinander, Johan-Fredrik Selin, Jan Fors, Leo Mandell | 1990-03-06 |
| 4861874 | Method of lowering the carbamate content of cellulose carbamate products using a base/alkali metal salt mixture | Jan Fors, Leo Mandell, Kerstin Meinander, Johan-Fredrik Selin, Olli Turunen | 1989-08-29 |
| 4639514 | Cyclic process for producing an alkali solution of cellulose carbamate and precipitating the carbamate | Olli Turunen, Jouko Huttenen, Johan-Fredrik Selin, Jan Fors | 1987-01-27 |
| 4639515 | Cyclic process for producing an alkali solution of cellulose carbamate and precipitating the carbamate | Olli Turunen, Jouko Huttunen, Johan-Fredrik Selin, Jan Fors | 1987-01-27 |
| 4583984 | Procedure for treating cellulose derivative fibres | Olli Turunen, Jouko Huttunen, Kurt Ekman, Leo Mandell | 1986-04-22 |
| 4567255 | Method of producing cellulose carbamate | Kurt Ekman, Olli Turunen, Jouko Huttunen, Johan-Fredrik Selin, Jan Fors | 1986-01-28 |
| 4530999 | Method of producing cellulose carbamate fibers or films | Johan-Fredrik Selin, Jouko Huttunen, Olli Turunen, Jan Fors, Kurt Ekman | 1985-07-23 |
| 4526620 | Cellulose carbamate solutions | Johan-Fredrik Selin, Jouko Huttunen, Olli Turunen, Kurt Ekman | 1985-07-02 |
| 4486585 | Procedure for producing soluble cellulose derivatives | Olli Turunen, Leo Mandell, Kurt Ekman, Jouko Huttunen | 1984-12-04 |
| 4456749 | Procedure for precipitating cellulose derivative | Leo Mandell, Kurt Ekman, Jouko Huttunen, Olli Turunen | 1984-06-26 |
| 4404369 | Method of producing alkali-soluble cellulose derivative | Jouko Huttunen, Olli Turunen, Leo Mandell, Kurt Ekman | 1983-09-13 |