TREA

Horst Fruhbeis

Follow

Person

  • Kelkheim/Taunus, DE
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs
    • Patent number 4,578,469
    • Issue date Mar 25, 1986
    • Hoechst Aktiengesellschaft
    • Hans-Matthias Deger
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Mixtures of optical brighteners
    • Patent number 4,336,155
    • Issue date Jun 22, 1982
    • Hoechst Aktiengesellschaft
    • Thomas Martini
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Mixtures of optical brighteners
    • Patent number 4,330,427
    • Issue date May 18, 1982
    • Hoechst Aktiengesellschaft
    • Thomas Martini
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Benzimidazo-[1,2-a]-quinolines
    • Patent number 4,219,651
    • Issue date Aug 26, 1980
    • Hoechst Aktiengesellschaft
    • Dieter Gunther
    • C07 - ORGANIC CHEMISTRY