TREA

Hans Spengler

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  • Henrichenburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sinterable carbon powder and method of its production
    • Patent number 5,283,045
    • Issue date Feb 1, 1994
    • Rutgerswerke AG
    • Winfried Boenigk
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Coal tar pitch and the preparation and use thereof
    • Patent number 5,262,043
    • Issue date Nov 16, 1993
    • Rutgerswerke AG
    • Winfried Boenigk
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Novel process
    • Patent number 5,075,416
    • Issue date Dec 24, 1991
    • Rutgerswerke AG
    • Peter Staglich
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Preparation of 2,6-dialkyl-naphthalenes
    • Patent number 4,795,847
    • Issue date Jan 3, 1989
    • Rutgerswerke Aktiengesellschaft
    • Jens Weitkamp
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for the continuous production of indene resins
    • Patent number 4,113,931
    • Issue date Sep 12, 1978
    • Rutgerswerke Aktiengesellschaft
    • Hans Spengler
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...