Patents by Inventor Michael Uhlig

Michael Uhlig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multilayered luster pigments
    Patent number: 7060126
    Abstract: The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of ?1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 13, 2006
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Martin Friz, Gerhard Pfaff, Siegfried Raabe, Michael Uhlig
  • Pigment with a metallic luster
    Patent number: 6997982
    Abstract: The invention relates to a pigment with a metallic luster, comprising a plate-like non-metallic substrate having a thickness lower an 200 nm, which is entirely coated with a metallic layer.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 14, 2006
    Assignee: Merck Patent GmbH
    Inventors: Gerhard Pfaff, Stephanie Andes, Michael Uhlig
  • Pigment with a metallic luster
    Patent number: 6929690
    Abstract: A pigment with a metallic luster, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 ?m, which is fully enveloped by a metal layer.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 16, 2005
    Assignee: Merck Patent GmbH
    Inventors: Reiner Vogt, Gerhard Pfaff, Stephanie Andes, Michael Uhlig, Martin Friz, Katsuhisa Nitta
  • Pigment wit a metallic lustre
    Publication number: 20040244640
    Abstract: A pigment with a metallic lustre, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 &mgr;m, which is fully enveloped by a metal layer.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 9, 2004
    Inventors: Reiner Vogt, Gerhard Pfaff, Stephanie Andes, Michael Uhlig, Martin Fritz, Katsuhisa Niita
  • Pigment with a metallic lustre
    Publication number: 20040237844
    Abstract: The invention relates to a pigment with a metallic lustre, comprising a plate-like non-metallic substrate having a thickness lower an 200 nm, which is entirely coated with a metallic layer.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 2, 2004
    Inventors: Gerhard Pfaff, Stephanie Andes, Michael Uhlig
  • Multilayered systems having optical properties
    Publication number: 20040219344
    Abstract: Multilayered systems having optical properties based on metallic substrates comprise both a layer (A) of at least two dielectric materials of different refractive index, where the refractive index at the lower side and the refractive index at the upper side of layer (A) are different, and a selectively or non-selectively absorbent layer (B).
    Type: Application
    Filed: June 7, 2004
    Publication date: November 4, 2004
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Martin Friz, Ute Honeit, Gerhard Pfaff, Michael Uhlig
  • Colored and coated plateletlike pigments
    Patent number: 6630018
    Abstract: The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: October 7, 2003
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Gerd Bauer, Karl Osterried, Christoph Schmidt, Reiner Vogt, Helge-Bettina Kniess, Michael Uhlig, Norbert Schül, Günther Brenner
  • COLORED AND COATED PLATELETLIKE PIGMENTS
    Publication number: 20030047115
    Abstract: The invention relates to a platelet-like pigment having high lustre and high covering power or high transparency, consisting of a transparent, inorganic, platelet-like matrix which can contain an additional constituent, characterised in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the lustre.
    Type: Application
    Filed: April 15, 1994
    Publication date: March 13, 2003
    Inventors: GERD BAUER, KARL OSTERRIED, CHRISTOPH SCHMIDT, REINER VOGT, HELGE-BETTINA KNIESS, MICHAEL UHLIG, NORBERT SCHUL, GUNTHER BRENNER
  • Multilayered luster pigments
    Publication number: 20030005859
    Abstract: The invention relates to multilayered luster pigments based on metallic substrates, which are completely surrounded by a plurality of layers, where these layers comprise at least one layer pack (A) having a colorless dielectric layer of a material with a refractive index n of ≦1.8, and a colorless dielectric layer of a material with a refractive index n of >1.8, and a selectively or non-selectively absorbent layer (B), and to a process for their production, and to their use.
    Type: Application
    Filed: June 12, 2002
    Publication date: January 9, 2003
    Applicant: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Martin Friz, Gerhard Pfaff, Siegfried Raabe, Michael Uhlig
  • Multilayered systems having optical properties
    Publication number: 20030008120
    Abstract: Multilayered systems having optical properties based on metallic substrates comprise both a layer (A) of at least two dielectric materials of different refractive index, where the refractive index at the lower side and the refractive index at the upper side of layer (A) are different, and a selectively or non-selectively absorbent layer (B).
    Type: Application
    Filed: June 12, 2002
    Publication date: January 9, 2003
    Applicant: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerald Fuchs-Pohl, Martin Friz, Ute Honeit, Gerhard Pfaff, Michael Uhlig