Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425974 | Process for treating wastewater from a bleach plant | Patrick S. Bryant | 2002-07-30 |
| 6398908 | Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound | Wenche Elisabeth Hermansson, Lennart Andersson, Magnus Linsten, Lillemor Holtinger | 2002-06-04 |
| 6007678 | Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof | Magnus Linsten, Ann-Sofie Hallstrom | 1999-12-28 |
| 5785812 | Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence | Magnus Linsten, Ann-Sofie Hallstrom | 1998-07-28 |
| 5658429 | Process for bleaching of lignocellulose-containing pulp using a chelating agent prior to a peroxide-ozone-peroxide sequence | Lennart Andersson, Lillemor Holtinger, Jan-Erik Hook | 1997-08-19 |
| 5310458 | Process for bleaching lignocellulose-containing pulps | Per Lundgren, Lillemor Holtinger, Marie R. Samuelsson | 1994-05-10 |
| 5143580 | Process for reducing the amount of halogenated organic compounds in spent liquor from a peroxide-halogen bleaching sequence | Lillemor Holtinger, Marie R. Samuelsson, Per Lundgren | 1992-09-01 |