Patents by Inventor Stefan NEUFEIND

Stefan NEUFEIND 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).

  • Production of High Purity Lithium Carbonate from Brines
    Publication number: 20220048783
    Abstract: The invention relates to a process for the preparation of high-purity lithium carbonate from brines.
    Type: Application
    Filed: December 16, 2019
    Publication date: February 17, 2022
    Applicant: LANXESS Deutschland GmbH
    Inventors: Dirk Steinhilber, Stefan Neufeind, Shintaro Tzusuki, Joachim Kralik
  • Sulfonated aminomethylated chelate resins
    Patent number: 9950320
    Abstract: The invention relates to sulfonated aminomethylated chelate resins, to a method for producing same, to the use thereof for obtaining and purifying metals, in particular rare earth metals, from aqueous solutions and organic liquids, and for producing highly pure silicon.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: April 24, 2018
    Assignee: LANXESS Deutschland GmbH
    Inventors: Reinhold Klipper, Stefan Neufeind
  • SULFONATED AMINOMETHYLATED CHELATE RESINS
    Publication number: 20170216833
    Abstract: The invention relates to sulfonated aminomethylated chelate resins, to a method for producing same, to the use thereof for obtaining and purifying metals, in particular rare earth metals, from aqueous solutions and organic liquids, and for producing highly pure silicon.
    Type: Application
    Filed: August 17, 2015
    Publication date: August 3, 2017
    Applicant: LANXESS Deutschland GmbH
    Inventors: Reinhold KLIPPER, Stefan NEUFEIND