TREA

Gerhard Kemmler

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  • Jena, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Colored borosilicate glass
    • Patent number 5,627,115
    • Issue date May 6, 1997
    • Jenaer Glaswerk GmbH
    • Eckhart Watzke
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Borosilicate glass weak in boric acid
    • Patent number 5,599,753
    • Issue date Feb 4, 1997
    • Jenaer Glaswerck GmbH
    • Eckhart Watzke
    • C03 - GLASS MINERAL OR SLAG WOOL