Patents by Inventor Sylke Klein

Sylke Klein 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).

  • Publication number: 20210322285
    Abstract: The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: Merck Patent GmbH
    Inventors: Sylke KLEIN, Lilia HEIDER, Carsten LORENZ, Sabine SCHOEN
  • Patent number: 10369831
    Abstract: The present invention relates to a printed image comprising flake-form effect pigments which has striking matt/gloss effects, to a process for the production of a printed image of this type, and to the use thereof, in particular in security printing.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: August 6, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Sylke Klein, Heidemarie Montag
  • Patent number: 9862219
    Abstract: The present invention relates to a method for producing a marking in a coating on a substrate or on the surface of a molding, where the marking represents a negative marking within a luminescent surrounding field and is generated using a laser beam, to a marking produced with the aid of the method, and to the use thereof, in particular for the labeling of products.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: January 9, 2018
    Assignee: MERCK PATENT GMBH
    Inventor: Sylke Klein
  • Patent number: 9835943
    Abstract: The present invention relates to a process for the laser treatment of effect pigment-containing coatings, to coatings produced using this process, and to the use thereof in decorative and security products.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: December 5, 2017
    Assignee: MERCK PATENT GMBH
    Inventors: Matthias Quenzer, Sylke Klein
  • Patent number: 9605155
    Abstract: The present invention relates to a golden interference pigment which is suitable, in particular, for printing processes, to a process for the preparation of a pigment of this type, and to the use thereof.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 28, 2017
    Assignee: Merck Patent GmbH
    Inventors: Ute Honeit, Sylke Klein
  • Publication number: 20160318325
    Abstract: The present invention relates to a method for producing a marking in a coating on a substrate or on the surface of a moulding, where the marking represents a negative marking within a luminescent surrounding field and is generated using a laser beam, to a marking produced with the aid of the method, and to the use thereof, in particular for the labeling of products.
    Type: Application
    Filed: November 20, 2014
    Publication date: November 3, 2016
    Applicant: MERCK PATENT GMBH
    Inventor: Sylke KLEIN
  • Publication number: 20160207344
    Abstract: The present invention relates to a printed image comprising flake-form effect pigments which has striking matt/gloss effects, to a process for the production of a printed image of this type, and to the use thereof, in particular in security printing.
    Type: Application
    Filed: July 25, 2014
    Publication date: July 21, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Sylke KLEIN, Heidemarie MONTAG
  • Publication number: 20150336215
    Abstract: The present invention relates to a process for the laser treatment of effect pigment-containing coatings, to coatings produced using this process, and to the use thereof in decorative and security products.
    Type: Application
    Filed: May 21, 2015
    Publication date: November 26, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: Matthias QUENZER, Sylke KLEIN
  • Publication number: 20150259538
    Abstract: The present invention relates to a golden interference pigment which is suitable, in particular, for printing processes, to a process for the preparation of a pigment of this type, and to the use thereof
    Type: Application
    Filed: August 16, 2013
    Publication date: September 17, 2015
    Applicant: Merck Patent GmbH
    Inventors: Ute Honeit, Sylke Klein
  • Publication number: 20150023899
    Abstract: The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: Sylke KLEIN, Lilia HEIDER, Carsten LORENZ, Sabine SCHOEN
  • Publication number: 20130270344
    Abstract: The present invention relates to a coloured magnetisable security element which is suitable for the protection/verification of articles to be protected against counterfeiting and copying, in particular documents of value, is machine-readable and has a specific absorption behaviour in the NIR region, to a method for the verification of a security element of this type, and to the use of the security element for the protection and/or verification of products.
    Type: Application
    Filed: December 13, 2011
    Publication date: October 17, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Dieter Heck, Ute Honeit, Sylke Klein
  • Patent number: 8540891
    Abstract: The invention relates to novel etching media in the form of etching pastes for etching selected areas or the entire area of silicon surfaces and layers, in addition to the use of said media.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: September 24, 2013
    Assignee: Merck Patent GmbH
    Inventors: Armin Kübelbeck, Sylke Klein, Werner Stockum
  • Patent number: 8343412
    Abstract: The present invention relates to the sealing of inscriptions on plastics which have been produced by means of lasers on the plastic surface.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: January 1, 2013
    Assignee: Merck Patent GmbH
    Inventors: Sylke Klein, Tanja Lueckert (formerly Sandner)
  • Patent number: 8257617
    Abstract: To provide functional paste with etching activity and good electrical properties. Functional paste comprising a metal powder, an etching agent, a binder and an organic solvent.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 4, 2012
    Assignee: Merck Patent GmbH
    Inventors: Sylke Klein, Armin Kuebelbeck, Werner Stockum, Jun Nakanowatari, Kiyohiko Kawamoto, Katsumi Tanino
  • Patent number: 8148191
    Abstract: The present invention relates firstly to HF/fluoride-free etching and doping media which are suitable both for the etching of inorganic layers and also for the doping of underlying layers. The present invention secondly also relates to a process in which these media are employed.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: April 3, 2012
    Assignee: Merck Patent GmbH
    Inventors: Sylke Klein, Armin Kübelbeck, Werner Stockum, Wilfried Schmidt, Berthold Schum
  • Publication number: 20110117335
    Abstract: The present invention relates to the sealing of inscriptions on plastics which have been produced by means of lasers on the plastic surface.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Inventors: Sylke KLEIN, Tanja Lueckert (formerly Sandner)
  • Publication number: 20110018252
    Abstract: The present invention relates to a security pigment having an intrinsic hidden and/or forensic security feature, consisting of a transparent inorganic matrix and at least one particulate material embedded in the matrix, to the use of a security pigment of this type for the pigmentation of paints, coatings and the like, and to a method for the detection of a security pigment of this type.
    Type: Application
    Filed: November 12, 2008
    Publication date: January 27, 2011
    Inventors: Ralf Petry, Michael Weiden, Sylke Klein, Klaus-Christian Ullmann
  • Patent number: 7837890
    Abstract: The present invention relates to a novel printable etching medium having non-Newtonian flow behavior for the etching of surfaces in the production of solar cells and to the use thereof. In particular, the invention relates to corresponding particle-containing compositions by means of which extremely fine structures can be etched very selectively without damaging or attacking adjacent areas.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 23, 2010
    Assignee: Merck Patent GmbH
    Inventors: Werner Stockum, Armin Kuebelbeck, Sylke Klein
  • Publication number: 20100068889
    Abstract: The present invention relates to particle-containing etching media in the form of etching pastes which are suitable for the full-area or selective etching of extremely fine lines or structures in silicon surfaces and layers and in glass-like surfaces formed from suitable silicon compounds. The present invention also relates to the use of the pastes according to the invention in processes for etching surfaces of this type.
    Type: Application
    Filed: October 5, 2007
    Publication date: March 18, 2010
    Applicant: MERCK PATENT GMBH
    Inventors: Werner Stockum, Sylke Klein, Armin Kuebelbeck
  • Patent number: 7629257
    Abstract: The invention concerns etching and doping substances free of hydrochloric/fluoride acid used for etching inorganic layers as well as for doping subjacent layers. The invention also concerns a method wherein said substances are used.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: December 8, 2009
    Assignee: Merck Patentgesellschaft
    Inventors: Sylke Klein, Armin Kübelbeck, Werner Stockum, Wilfried Schmidt, Berthold Schum