Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922172 | Combustion of black liquid and processing of lime sludge in a recovery boiler | Bertil Granqvist, Ingemar Eriksson | 1999-07-13 |
| 5667633 | Method of producing white liquor streams of high and low sulphidity | Bertil Granqvist, Ingemar Eriksson | 1997-09-16 |
| 5607548 | Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity | — | 1997-03-04 |
| 4941945 | Method for clarifying green liquor | — | 1990-07-17 |
| 4624634 | Method and arrangement for improving the heat economy in rotary kilns | Borje Thorsstrom | 1986-11-25 |
| 4378198 | Windmill | — | 1983-03-29 |