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Persefoni Hilken

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  • Koln, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flame-retardant polyurethane rigid foams
    • Patent number 11,434,321
    • Issue date Sep 6, 2022
    • Covestro Deutschland AG
    • Hartmut Nefzger
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Flame-retarded rigid polyurethane foams
    • Patent number 11,352,462
    • Issue date Jun 7, 2022
    • Covestro Deutschland AG
    • Hartmut Nefzger
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyurethane foams based on polyethercarbonate polyols
    • Patent number 10,907,007
    • Issue date Feb 2, 2021
    • Covestro Intellectual Property GmbH & Co. KG
    • Persefoni Hilken
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR PRODUCING POLYETHER CARBONATE POLYOLS
    • Publication number 20220315698
    • Publication date Oct 6, 2022
    • COVESTRO DEUTSCHLAND AG
    • Joerg Hofman
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    METHOD FOR PREPARING POLYETHER CARBONATE POLYOLS
    • Publication number 20220227928
    • Publication date Jul 21, 2022
    • Covestro Intellectual Property GmbH & Co. KG
    • Kai Laemmerhold
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYURETHANE FOAMS BASED ON POLYETHER CARBONATE POLYOLS
    • Publication number 20210070916
    • Publication date Mar 11, 2021
    • Covestro Intellectual Property GmbH & Co. KG
    • Persefoni Hilken
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYURETHANE FOAMS BASED ON POLYETHERCARBONATE POLYOLS
    • Publication number 20200407485
    • Publication date Dec 31, 2020
    • Covestro Intellectual Property GmbH & Co. KG
    • Persefoni Hilken
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYURETHANE FOAMS BASED ON POLYETHERCARBONATE POLYOLS
    • Publication number 20200399466
    • Publication date Dec 24, 2020
    • Covestro Intellectual Property GmbH & Co. KG
    • Persefoni HILKEN
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    FLAME-RETARDED RIGID POLYURETHANE FOAMS
    • Publication number 20200392276
    • Publication date Dec 17, 2020
    • COVESTRO DEUTSCHLAND AG
    • Hartmut Nefzger
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    FLAME-RETARDANT POLYURETHANE RIGID FOAMS
    • Publication number 20200392277
    • Publication date Dec 17, 2020
    • COVESTRO DEUTSCHLAND AG
    • Hartmut Nefzger
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYURETHANE FOAMS BASED ON POLYETHERCARBONATE POLYOLS
    • Publication number 20200087438
    • Publication date Mar 19, 2020
    • COVESTRO DEUTSCHLAND AG
    • Persefoni Hilken
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...