Patents by Inventor Johann H. Mulzer

Johann H. Mulzer 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).

  • Process for the production of optically active 4-aryl-2-pyrrolidinones
    Patent number: 5298628
    Abstract: Stereoselective process for the production of (4R)- or (4S)-4-aryl-2-pyrrolidinones as well as intermediate products and the stereoselective process for the production of the optically active intermediate compounds.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: March 29, 1994
    Assignee: Schering Aktiengesellschaft
    Inventors: Johann H. Mulzer, Ralf H. Zuhse