Patents by Inventor Katharina Sievert

Katharina Sievert 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).

  • MN-ACTIVATED OXIDOHALIDES AS CONVERSION LUMINESCENT MATERIALS FOR LED-BASED SOLID STATE LIGHT SOURCES
    Publication number: 20210024824
    Abstract: The present invention relates to Mn-activated luminescent materials, to a process for preparation thereof and to the use thereof as luminophores or conversion luminophores in light sources. The present invention further relates to a radiation-converting mixture comprising the luminescent material of the invention and a light source comprising the luminescent material of the invention or the radiation-converting mixture. The present invention further provides light sources, especially LEDs, and lighting units comprising a primary light source and the luminescent material of the invention or the radiation-converting mixture. The Mn-activated luminescent materials of the invention are especially suitable for creation of warm white light in LEDs.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 28, 2021
    Applicant: LITEC-VERMÖGENSVERWALTUNGSGESELLSCHAFT MBH
    Inventors: Thomas JANSEN, Thomas JUESTEL, Ralf PETRY, Ingo KOEHLER, Katharina SIEVERT
  • Method for preparation of cyano compounds of the 13th group with a lewis acid
    Patent number: 9458180
    Abstract: The invention discloses a method for preparation of cyano compounds of the 13th group of the periodic table with 1, 2, 3 or 4 cyano residues, represented by formula (I): [Catn+][Z1F4-m(CN)m)?]n by a reaction of [(Z1F4)?] with trimethylsilylcyanide in the presence of a Lewis acid and in the presence of the cation Catn+; Cat2+ is a cation, Z1 is B, Al, Ga, In or Tl, m is 1, 2, 3 or 4 and n is 1, 2, 3 or 4.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 4, 2016
    Assignee: Lonza Ltd.
    Inventors: Katharina Sievert, Axel Schulz, Jorg Harloff, Stefan Ellinger, Christoph Taeschler, Cornelia Zur Taeschler
  • Method for Preparation of Cyano Compounds of the 13th Group with a Lewis Acid
    Publication number: 20160229874
    Abstract: The invention discloses a method for preparation of cyano compounds of the 13th group of the periodic table with 1, 2, 3 or 4 cyano residues, represented by formula (I): [Catn+][(Z1F4-m(CN)m)?]n by a reaction of [(Z1F4)?] with trimethylsilylcyanide in the presence of a Lewis acid and in the presence of the cation Catn+; Catn+ is a cation, Z1 is B, Al, Ga, In or Tl, m is 1, 2, 3 or 4 and n is 1, 2, 3 or 4.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 11, 2016
    Inventors: Katharina Sievert, Axel Schulz, Jorg Harloff, Stefan Ellinger, Christoph Taeschler, Cornelia Zur Taeschler