André Brötzmann

Person

  • Essen, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Reactive siloxanes

    • Patent number 11,795,275
    • Issue date Oct 24, 2023
    • Evonik Operations GmbH
    • Wilfried Knott
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    SiOC-based polyethersiloxanes

    • Patent number 11,279,804
    • Issue date Mar 22, 2022
    • Evonik Operations GmbH
    • Wilfried Knott
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Tailored SiOC-based polyethersiloxanes

    • Patent number 11,261,298
    • Issue date Mar 1, 2022
    • Evonik Operations GmbH
    • Philippe Favresse
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    REACTIVE SILOXANES

    • Publication number 20220033587
    • Publication date Feb 3, 2022
    • Evonik Operations GmbH
    • Wilfried Knott
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Tailored SiOC-based polyethersiloxanes

    • Publication number 20200377663
    • Publication date Dec 3, 2020
    • Evonik Operations GmbH
    • Philippe Favresse
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    SiOC-based polyethersiloxanes

    • Publication number 20200377669
    • Publication date Dec 3, 2020
    • Evonik Operations GmbH
    • Wilfried Knott
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...