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Gerhard PFAFF

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  • Muenster, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alpha-alumina flakes
    • Patent number 11,891,541
    • Issue date Feb 6, 2024
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    α-alumina flakes
    • Patent number 11,891,542
    • Issue date Feb 6, 2024
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Effect pigments
    • Patent number 11,773,270
    • Issue date Oct 3, 2023
    • Merck Patent GmbH
    • Gerhard Pfaff
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Alpha-alumina flakes
    • Patent number 11,180,659
    • Issue date Nov 23, 2021
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    α-alumina flakes
    • Patent number 11,142,649
    • Issue date Oct 12, 2021
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    α-alumina flakes
    • Patent number 10,647,861
    • Issue date May 12, 2020
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    α-alumina flakes
    • Patent number 10,457,812
    • Issue date Oct 29, 2019
    • Merck Patent GmbH
    • Ryuta Suzuki
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Effect pigments
    • Patent number 10,280,308
    • Issue date May 7, 2019
    • Merck Patent GmbH
    • Johann Dietz
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pigments
    • Patent number 8,906,504
    • Issue date Dec 9, 2014
    • Merck Patent GmbH
    • Helge Bettina Kniess
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Effect pigments
    • Patent number 8,337,611
    • Issue date Dec 25, 2012
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Semi-transparent interference pigments containing tin
    • Patent number 7,708,823
    • Issue date May 4, 2010
    • Merck Patent GmbH
    • Helge Bettina Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Effect pigments
    • Patent number 7,691,196
    • Issue date Apr 6, 2010
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Interference pigment with a high covering power
    • Patent number 7,611,574
    • Issue date Nov 3, 2009
    • Merck Patent Gesellschaft mit beschrankter Haftung
    • Helge Kniess
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Transparent conductive pigments
    • Patent number 7,416,688
    • Issue date Aug 26, 2008
    • Merck Patent Gesellschaft mit beschrankter Haftung
    • Gerhard Pfaff
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Effect pigments based on thin SiO2 flakes
    • Patent number 7,255,736
    • Issue date Aug 14, 2007
    • Merck Patent GmbH
    • Gerhard Pfaff
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Laser-markable pigments containing an absorber coated with a marker
    • Patent number 7,202,288
    • Issue date Apr 10, 2007
    • Merck Patent GmbH
    • Helge Bettina Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Effect pigments having a strong color flop
    • Patent number 7,169,223
    • Issue date Jan 30, 2007
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Intensely colored red effect pigments
    • Patent number 7,156,913
    • Issue date Jan 2, 2007
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Multilayered luster pigments
    • Patent number 7,060,126
    • Issue date Jun 13, 2006
    • Merck Patent GmbH
    • Stephanie Andes
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Pigment with a metallic luster
    • Patent number 6,997,982
    • Issue date Feb 14, 2006
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pigment with a metallic luster
    • Patent number 6,929,690
    • Issue date Aug 16, 2005
    • Merck Patent GmbH
    • Reiner Vogt
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Transparent medium having angle-selective transmission or reflectio...
    • Patent number 6,767,633
    • Issue date Jul 27, 2004
    • Merck Patent GmbH
    • Elke Steudel
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Laser-markable plastics
    • Patent number 6,727,308
    • Issue date Apr 27, 2004
    • Merck Patent Gesellschaft mit beschrankter Haftung
    • Helge Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multilayered interference pigments
    • Patent number 6,656,259
    • Issue date Dec 2, 2003
    • Merck Patent Gesellschaft mit beschraenkter Haftung
    • Gerhard Pfaff
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multilayer nacreous pigment
    • Patent number 6,648,957
    • Issue date Nov 18, 2003
    • Merck Patent GmbH
    • Stephanie Andes
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Transparent medium with angular-selective transmitting or reflectin...
    • Patent number 6,602,340
    • Issue date Aug 5, 2003
    • Merck Patent GmbH
    • Christina Schank
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Interference pigments
    • Patent number 6,596,070
    • Issue date Jul 22, 2003
    • Merck Patent Gesellschaft
    • Christoph Schmidt
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pigment flakes
    • Patent number 6,552,102
    • Issue date Apr 22, 2003
    • Merck Patent Gesellschaft mit beschrankter Haftung
    • Eike Poetsch
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Pigment mixture
    • Patent number 6,517,628
    • Issue date Feb 11, 2003
    • Merck Patent GmbH
    • Gerhard Pfaff
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multi-coated interference pigments
    • Patent number 6,500,251
    • Issue date Dec 31, 2002
    • Merck Patent Gesellschaft mit beschrankter Haftung
    • Stephanie Andes
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20220251403
    • Publication date Aug 11, 2022
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20220243076
    • Publication date Aug 4, 2022
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    EFFECT PIGMENTS
    • Publication number 20200339820
    • Publication date Oct 29, 2020
    • Merck Patent GmbH
    • Gerhard PFAFF
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20200231828
    • Publication date Jul 23, 2020
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20200231827
    • Publication date Jul 23, 2020
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20190330475
    • Publication date Oct 31, 2019
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20190322871
    • Publication date Oct 24, 2019
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    EFFECT PIGMENTS
    • Publication number 20170130054
    • Publication date May 11, 2017
    • Merck Patent GmbH
    • Johann DIETZ
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    EFFECT PIGMENTS
    • Publication number 20160068683
    • Publication date Mar 10, 2016
    • Merck Patent GmbH
    • Gerhard PFAFF
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20140322536
    • Publication date Oct 30, 2014
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    ALPHA-ALUMINA FLAKES
    • Publication number 20140322534
    • Publication date Oct 30, 2014
    • Merck Patent GmbH
    • Ryuta SUZUKI
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    EFFECT PIGMENTS
    • Publication number 20130164356
    • Publication date Jun 27, 2013
    • Merck Patent Gesellschaft mit Beschrankter Haftung
    • Gerhard PFAFF
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Application

    Effect Pigment And The Use Thereof In Cosmetics And In The Foods An...
    • Publication number 20110300200
    • Publication date Dec 8, 2011
    • Gerhard Pfaff
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    EFFECT PIGMENTS
    • Publication number 20100151047
    • Publication date Jun 17, 2010
    • Gerhard Pfaff
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    EFFECT PIGMENT AND USE THEREOF IN COSMETICS AND IN THE FOOD AND PHA...
    • Publication number 20090220557
    • Publication date Sep 3, 2009
    • Gerhard Pfaff
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Semi-Transparent Interference Pigments Containing Tin
    • Publication number 20080210123
    • Publication date Sep 4, 2008
    • Helge Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Mixture of Interference Pigments
    • Publication number 20080207772
    • Publication date Aug 28, 2008
    • Helge Bettina Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Pigments
    • Publication number 20080200560
    • Publication date Aug 21, 2008
    • Helge Bettina Kniess
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Effect pigments
    • Publication number 20080047470
    • Publication date Feb 28, 2008
    • Gerhard Pfaff
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    Interference pigment with a high covering power
    • Publication number 20070028799
    • Publication date Feb 8, 2007
    • Helge Bettina Kniess
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Microstructured effect pigments
    • Publication number 20060159920
    • Publication date Jul 20, 2006
    • Peter Reynders
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Intensely colored red effect pigments
    • Publication number 20060156949
    • Publication date Jul 20, 2006
    • Gerhard Pfaff
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Effect pigments based on thin SiO2 flakes
    • Publication number 20060112859
    • Publication date Jun 1, 2006
    • Gerhard Pfaff
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Multilayered interference pigments
    • Publication number 20060027140
    • Publication date Feb 9, 2006
    • Helge Bettina Kniess
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Transparent conductive pigments
    • Publication number 20050253117
    • Publication date Nov 17, 2005
    • Gerhard Pfaff
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Pigment wit a metallic lustre
    • Publication number 20040244640
    • Publication date Dec 9, 2004
    • Reiner Vogt
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Pigment with a metallic lustre
    • Publication number 20040237844
    • Publication date Dec 2, 2004
    • Gerhard Pfaff
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Multilayered systems having optical properties
    • Publication number 20040219344
    • Publication date Nov 4, 2004
    • Stephanie Andes
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Laser-markable pigments
    • Publication number 20040157975
    • Publication date Aug 12, 2004
    • Helge Bettina Kniess
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Transparent medium having angle-selective transmission or reflectio...
    • Publication number 20030092815
    • Publication date May 15, 2003
    • Elke Steudel
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...