TREA

Rolf Karlsson

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  • Laxa, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Braking energy recovery circuit
    • Patent number 12,076,823
    • Issue date Sep 3, 2024
    • Esab AB
    • Rolf Karlsson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Inverter with commutation circuit
    • Patent number 8,254,150
    • Issue date Aug 28, 2012
    • Esab AB
    • Rolf Karlsson
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Arc ignition arrangement
    • Patent number 6,423,937
    • Issue date Jul 23, 2002
    • Esab AB
    • Rolf Karlsson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Arrangement with transfer of measured values
    • Patent number 6,316,745
    • Issue date Nov 13, 2001
    • Esab AB
    • Rolf Karlsson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents