Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013454 | Method of removing organic substances from effluents from pulp and paper manufacturing processes | — | 1991-05-07 |
| 4842688 | Method of removing macromolecular organic dissolved and colloidal material from wood processing industry effluents | Johan Gullichsen | 1989-06-27 |
| 4812207 | Method of removing lignin from bleach plant effluents | Johan Gullichsen | 1989-03-14 |
| 4761238 | Method of treatment of the circulation water of a paper mill | — | 1988-08-02 |