Patents by Inventor Andrea Opolka

Andrea Opolka 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
  • SILICATE PHOSPHORS
    Publication number: 20160264862
    Abstract: The invention relates to europium-doped silicate phosphors comprising a coating of aluminum oxide, to a process for the preparation of these compounds, and to the use thereof as conversion phosphors or in lamps.
    Type: Application
    Filed: October 2, 2014
    Publication date: September 15, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Holger WINKLER, Monica DAVIS, Christof HAMPEL, Andrea OPOLKA, Ralf PETRY, Olaf SOETH, Stefan TEWS, Christopher GUMP, David KING, Joseph A. SPENCER, Kassandra SULLIVAN-TRUJILLO
  • Silicate phosphors
    Patent number: 8906264
    Abstract: The invention relates to compounds of the general formula (I) EA2-xEuxSiO4.aM2B4O7 (I) where EA stands for two or more elements selected from Ca, Sr, Zn and Ba, M stands for Li, Na or K, and a stands for a value from the range 0.01?a?0.08, and x stands for a value from the range 0.01?x?0.25.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 9, 2014
    Assignee: Merck Patent GmbH
    Inventors: Tim Vosgroene, Daniela Degenring, Stefan Schlueter, Sascha Hess, Andrea Opolka, Eric Heiden
  • SILICATE PHOSPHORS
    Publication number: 20130341664
    Abstract: The invention relates to compounds of the general formula (I) EA2-xEuxSiO4.aM2B4O7 (I) where EA stands for two or more elements selected from Ca, Sr, Zn and Ba, M stands for Li, Na or K, and a stands for a value from the range 0.01?a?0.08, and x stands for a value from the range 0.01?x?0.25.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 26, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Tim Vosgroene, Daniela Degenring, Stefan Schlueter, Sascha Hess, Andrea Opolka, Eric Heiden