Stig Andtbacka

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Karlstad, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method of continuously isothermally cooking of pulp
- Patent number 5,919,337
- Issue date Jul 6, 1999
- Kvaerner Pulping Technologies AB
- Sven-Erik Olsson
- 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
Information Patent Grant
Process for bleaching pulp without using chlorine containing chemicals
- Patent number 5,415,734
- Issue date May 16, 1995
- Kvaerner Pulping Technologies AB
- Ake Backlund
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE