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Annette Johnen

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  • Langerwehe, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of coating a luminescent material
    • Patent number 6,150,757
    • Issue date Nov 21, 2000
    • U.S. Philips Corporation
    • Cornelis R. Ronda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Method of coating a luminescent material
    • Patent number 5,811,154
    • Issue date Sep 22, 1998
    • U.S. Philips Corporation
    • Cornelis R. Ronda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...