TREA

Leif Helgesson

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  • Karlstad, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for impulse-pressing a web
    • Patent number 6,309,512
    • Issue date Oct 30, 2001
    • Valmet-Karlstad AB
    • Jan Martin Bengtsson
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Threading device
    • Patent number 6,131,784
    • Issue date Oct 17, 2000
    • Valmet-Karlstad AB
    • Leif Helgesson
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

  • Information Patent Application

    Press section tail threading
    • Publication number 20030183353
    • Publication date Oct 2, 2003
    • Metso Paper Karlstad AB
    • Leif Helgesson
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE