Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10981080 | Heat transfer tube and method for manufacturing a heat transfer tube | — | 2021-04-20 |
| 10926189 | Heat transfer tube and method for manufacturing a heat transfer tube | Krister Pettersson, Martin Apel, Mattias Gourdon, Anders Åkesjö | 2021-02-23 |
| 8888955 | Method and equipment for the evaporation of black liquor that is obtained from a digestion process during the production of cellulose pulp | — | 2014-11-18 |
| 6395171 | Strainer arrangement for straining liquid from a mixing arrangement | Gustav Carlsson, Tommy Eriksson, Christer Isaksson, Sven-Erik Jansson, Lennart Lindau +3 more | 2002-05-28 |
| 6258206 | Process for purifying condensate while evaporating waste liquors | Lars Pettersson, Olof Tryggve Wennberg, Anders Wernqvist | 2001-07-10 |
| 6210455 | Evaporation apparatus for evaporation of liquids | Michael C. Thiede, Olle Wennberg, Anders Wernqvist, Martin Collander | 2001-04-03 |
| 5944950 | Process for the final evaporation of black liquor | Olle Wennberg | 1999-08-31 |
| 5771817 | Recovery boiler | Jan Bergman, Sven-Erik Jansson, Agneta Larsson | 1998-06-30 |
| 5454908 | Recovery boiler and method of reducing NO.sub.x emissions | — | 1995-10-03 |
| 4796546 | Combustion plant including a circulation fluid bed | Ola Herstad | 1989-01-10 |