Patents by Inventor Julia Rieb

Julia Rieb 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).

  • Method for preparing triacetone amine
    Patent number: 10807954
    Abstract: An improved method is used for preparing triacetone amine while recycling the by-products. This involves treating the crude product from triacetone amine preparation, which leads to an increase in the content of compounds which react readily with ammonia. This method enables efficient recycling of the by-products formed in the synthesis of triacetone amine.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Katharina Minke, Julia Rieb, Manfred Neumann
  • Method for preparing triacetone amine
    Publication number: 20200181088
    Abstract: An improved method is used for preparing triacetone amine while recycling the by-products. This involves treating the crude product from triacetone amine preparation, which leads to an increase in the content of compounds which react readily with ammonia. This method enables efficient recycling of the by-products formed in the synthesis of triacetone amine.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Katharina MINKE, Julia Rieb, Manfred Neumann