Patents by Inventor Heike Ehrich

Heike Ehrich 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 phosphorus-containing ?-aminonitriles
    Patent number: 11220520
    Abstract: The present invention relates primarily to processes conducted in a continuously operated reactor for preparing particular phosphorus-containing ?-aminonitriles of the formulae (Ia) and (Ib) defined hereinafter from corresponding phosphorus-containing cyanohydrin esters and to the use thereof for preparation of glufosinate or of glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 11, 2022
    Assignee: BASF SE
    Inventors: Kilian Tellmann, Gunter Karig, Heike Ehrich, Michael Sebek
  • Method for preparing phosphorus-containing a-aminonitriles
    Publication number: 20210179645
    Abstract: The present invention relates primarily to processes conducted in a continuously operated reactor for preparing particular phosphorus-containing ?-aminonitriles of the formulae (Ia) and (Ib) defined hereinafter from corresponding phosphorus-containing cyanohydrin esters and to the use thereof for preparation of glufosinate or of glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 17, 2021
    Inventors: Kilian Tellmann, Gunter Karig, Heike Ehrich, Michael Sebek