Patents by Inventor Norbert Stenzel

Norbert Stenzel 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).

  • Light-converting material
    Patent number: 10557081
    Abstract: The present invention relates to light-converting materials which comprise semiconductor nanoparticles and an unactivated crystalline material, where the semiconductor nanoparticles are located on the surface of the unactivated crystalline material. The present invention furthermore relates to the use of the light-converting material in a light source. The present invention furthermore relates to a light-converting mixture, to a light source, to a lighting unit which contains the light-converting material according to the invention, and to a process for the production of the light source.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 11, 2020
    Assignee: Merck Patent GmbH
    Inventors: Norbert Stenzel, Andrea Opolka, Bernhard Rieger, Stefan Tews
  • LIGHT-CONVERTING MATERIAL
    Publication number: 20190085239
    Abstract: The present invention relates to light-converting materials which comprise semiconductor nanoparticles and an unactivated crystalline material, where the semiconductor nanoparticles are located on the surface of the unactivated crystalline material. The present invention furthermore relates to the use of the light-converting material in a light source. The present invention furthermore relates to a light-converting mixture, to a light source, to a lighting unit which contains the light-converting material according to the invention, and to a process for the production of the light source.
    Type: Application
    Filed: August 17, 2016
    Publication date: March 21, 2019
    Applicant: Merck Patent GmbH
    Inventors: Norbert STENZEL, Andrea OPOLKA, Bernhard RIEGER, Stefan TEWS
  • Conductive coating formulation
    Patent number: 5536770
    Abstract: A conductive coating formulation comprising(i) from 5-25% by weight of a binder comprising a mixture ofa) from 40 to 60% by weight of an acrylic resin, andb) from 60 to 40% by weight of modified PVC,(ii) from 60-85% by weight of a solvent mixture comprising ester, aromatic and ketone solvents in a ratio of from 0.9:2.5:1.2 to 1.1:2.7:1.4, and(iii) from 5-25% by weight of an electrically conducting pigment.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: July 16, 1996
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Ralf Glausch, Wolfgang Maus, Norbert Stenzel