TREA

Johan L. I. Karlsson

Follow

Person

  • Lidingo, SE
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Water purification process 2
    • Patent number 5,190,655
    • Issue date Mar 2, 1993
    • Johan L. I. Karlsson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sewage-water purifying process
    • Patent number 4,732,679
    • Issue date Mar 22, 1988
    • Boliden Aktiebolag
    • Johan L. I. Karlsson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE