Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8088198 | Wet electrostatic precipitator | Rikard Hakansson | 2012-01-03 |
| 7153481 | Method and device for separating sulphur dioxide from a gas | Fredrik Jens Brogaard, Kerstin Forsgren, Rikard Hakansson, Kjell Nolin | 2006-12-26 |
| 7094382 | Method and a device for the separation of sulphur dioxide from a gas | Lars-Erik Johansson, Kjell Nolin, Mati Maripuu | 2006-08-22 |
| 6306357 | Process and apparatus for absorbing hydrogen sulphide | Erik Simonson, Mats Wallin, Erik Dahlqvist | 2001-10-23 |
| 5759505 | Method and device for removing sulphur dioxide from a gas | Kjell Nolin, Lars-Erik Johansson, Mati Maripuu, Leif Lindberg | 1998-06-02 |
| 4544542 | Method for oxidation of flue gas desulfurization absorbent and the product produced thereby | Peter A. Angevine, George P. Koudijs | 1985-10-01 |
| 4310691 | Method for selectively recovering sodium citrate from an aqueous solution | Tom C. Lillestolen | 1982-01-12 |
| 4181506 | Method for recovering concentrated sulphur dioxide from waste gases containing sulphur dioxide | — | 1980-01-01 |