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).

  • Combined etching and doping substances
    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
  • COMBINED ETCHING AND DOPING MEDIA
    Publication number: 20090071540
    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: Application
    Filed: October 7, 2008
    Publication date: March 19, 2009
    Inventors: Sylke KLEIN, Armin Kubelbeck, Wemer Stockum, Wilfried Schmidt, Berthold Schum
  • Laser Transfer of Security Features
    Publication number: 20080290649
    Abstract: The present invention relates to a process for increasing the counterfeiting protection of high-value products, documents of value and security documents by means of uncopyable security features which are transferred into the respective material with the aid of laser technology.
    Type: Application
    Filed: November 24, 2006
    Publication date: November 27, 2008
    Inventors: Sylke Klein, Klaus-Christian Ullmann
  • Process for a Thermal Transfer of a Liquid Crystal Film Using a Transfer Element
    Publication number: 20080261130
    Abstract: The invention relates to a laser-induced process that employs a transfer element comprising a liquid crystal material for a thermal transfer onto a receiving surface. The process is suitable for generating markings with various appearance or optical effects on a surface of choice. The transfer element comprises a light-to-heat conversion layer and a transfer layer The transfer layer comprises a liquid crystal material, especially a liquid crystal polymer film.
    Type: Application
    Filed: November 2, 2006
    Publication date: October 23, 2008
    Inventors: Robert Hammond-Smith, Sylke Klein, Philip Edward May
  • Printable Medium for the Etching of Silicon Dioxide and Silicon Nitride Layers
    Publication number: 20080121621
    Abstract: The present invention relates to a novel printable etching medium having non-Newtonian flow behaviour 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: Application
    Filed: December 19, 2005
    Publication date: May 29, 2008
    Inventors: Werner Stockum, Armin Kuebelbeck, Sylke Klein
  • Sealing of inscriptions on plastics
    Publication number: 20070154642
    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: March 11, 2005
    Publication date: July 5, 2007
    Inventors: Sylke Klein, Tanja Lueckert
  • Functional paste
    Publication number: 20070148810
    Abstract: [Aims] To provide functional paste with etching activity and good electrical properties. [Means] Functional paste comprising a metal powder, an etching agent, a binder and an organic solvent.
    Type: Application
    Filed: October 22, 2004
    Publication date: June 28, 2007
    Inventors: Sylke Klein, Armin Kuebelbeck, Werner Stockum, Jun Nakanowatari, Kiyohiko Kawamoto, Katsumi Tanino
  • Coloured laser marking
    Publication number: 20070080146
    Abstract: The invention relates to the colored laser marking and laser inscription of plastics based on welding of a polymer-containing inscription medium to the plastic surface.
    Type: Application
    Filed: October 14, 2004
    Publication date: April 12, 2007
    Inventors: Werner Stockum, Sylke Klein
  • Laser marking of documents of value
    Publication number: 20060141391
    Abstract: Disclosed are laser markings on a document of value and methods of preparing the same which are based on the interaction of the laser radiation with the printing-ink employed.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 29, 2006
    Inventors: Sylke Klein, Michael Weiden, Wolfgang Kraas, Klaus-Christian Ullmann, Burkhard Krietsch
  • Etching pastes for titanium oxide surfaces
    Publication number: 20060118759
    Abstract: The present invention relates to novel etching media in the form of printable and dispensable etching pastes for the etching of titanium oxide surfaces of the general composition TixOy, and to the use of these etching pastes in a process for the etching of titanium oxide surfaces
    Type: Application
    Filed: July 30, 2003
    Publication date: June 8, 2006
    Inventors: Sylke Klein, Armin Kubelbeck, Werner Stockum
  • Etching pastes for silicon surfaces and layers
    Publication number: 20050247674
    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: Application
    Filed: August 8, 2003
    Publication date: November 10, 2005
    Applicant: Merck Patent GmbH
    Inventors: Armin Kubelbeck, Sylke Klein, Werner Stockum
  • Combined etching and doping substances
    Publication number: 20040242019
    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: Application
    Filed: April 12, 2004
    Publication date: December 2, 2004
    Inventors: Sylke Klein, Armin Kubelbeck, Werner Stockum, Wilfried Schmidt, Berthold Schum
  • Etching pastes for inorganic surfaces
    Publication number: 20030160026
    Abstract: The invention relates to novel etching media in the form of printable, homogenous, particle-free etching pastes with non-Newtonian flow properties for the etching of inorganic surfaces, in particular, of glasses, preferably on silicon oxide and silicon nitride based glass and other silicon oxide and silicon nitride based systems and layers thereof. The invention further relates to the use of said etching media.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 28, 2003
    Inventors: Sylke Klein, Lilia Heider, Claudia Zielinski, Armin Kuebelbeck, Werner Stockum