Anders Bergqvist

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Karlstad, SE

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Patents Grantslast 30 patents

Information Patent Grant
Peroxide bleach sequence including an acidic bleach stage and inclu...
- Patent number 6,605,181
- Issue date Aug 12, 2003
- Kvaerner Pulping Aktiebolag
- Anders Bergqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of bleaching pulp without using chlorine chemicals in a (QP)...
- Patent number 6,325,891
- Issue date Dec 4, 2001
- Kvaerner Pulping Technologies AB
- Anders Bergqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Black liquor impregnation in digester
- Patent number 6,063,238
- Issue date May 16, 2000
- Kvaerner Pulping AB
- Anders Bergqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of continuous pulping in a digester with high black liquor u...
- Patent number 5,925,216
- Issue date Jul 20, 1999
- Kvaerner Pulping AB
- Anders Bergqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Recycling of knots in a continuous process for cooking chemical pulp
- Patent number 5,672,245
- Issue date Sep 30, 1997
- Kvaerner Pulping Technologies Aktiebolag
- Elisabeth Andtbacka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of integrating bleaching and recovery in the production of pulp
- Patent number 5,540,816
- Issue date Jul 30, 1996
- Kvaerner Pulping Technologies AB
- Stig Andtbacka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE