Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5425850 | CFB black liquor gasification system operating at low pressures | Michael C. Tanca, Erik Dahlquist | 1995-06-20 |
| 5284550 | Black liquier gasification process operating at low pressures using a circulating fluidized bed | Michael C. Tanca, Erik Dahlquist | 1994-02-08 |
| 4740312 | Method of regenerating a separation means for a liquid medium containing undissolved constituents | Erik Dahlquist, Soren Stridsberg, Milan Teppler, Bertil Akerblom | 1988-04-26 |
| 4359212 | Apparatus for reducing finely divided iron oxide material | Erik A. Bengtsson, Per Harald Collin, Bjorn Widell | 1982-11-16 |