Björn Wikström

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Sundsvall, SE

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Patents Grantslast 30 patents

Information Patent Grant
Screening apparatus including two screen means
- Patent number 6,702,120
- Issue date Mar 9, 2004
- Valmet Fibertech AB
- Kjell Forslund
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pressure screen with scrap separation
- Patent number 6,530,481
- Issue date Mar 11, 2003
- Valmet Fibertech Aktiebolag
- Anders Bergdahl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus with dilution liquid supply means
- Patent number 6,290,067
- Issue date Sep 18, 2001
- Valmet Fibertech Aktiebolag
- Anders Bergdahl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Screening apparatus with reject flow restriction means
- Patent number 6,170,769
- Issue date Jan 9, 2001
- Valmet Fibertech Aktiebolag
- Anders Bergdahl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE