Ulf Persson

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Orsundsbro, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method in drying of paper
- Patent number 6,742,280
- Issue date Jun 1, 2004
- Andritz Technology and Asset Management GmbH
- Anders Andrén
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Two stage process for drying of raw wood material
- Patent number 6,357,144
- Issue date Mar 19, 2002
- Valmet Fibertech AB
- Lars Nilsson
- F26 - DRYING
Information Patent Grant
Wood drying plant and a method of purifying a drying gas from a woo...
- Patent number 5,966,837
- Issue date Oct 19, 1999
- ABB Flakt AB
- Stefan Backa
- F26 - DRYING