Patents by Inventor Stefan Niedoba

Stefan Niedoba 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 preparation of optically active polyolefins
    Patent number: 4933403
    Abstract: Process for the preparation of optically active polyolefins by polymerizing olefins of the formula CH.sub.2 .dbd.CHR in which R.dbd.C.sub.1 C.sub.10 -alkyl in the presence of an optically active catalyst system composed of an optically active transition metal compound containing only enantiomer (R- or S-form) of a stereorigid, chiral transition metal compound and an aluminum-containing compound of the aluminoxane type.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: June 12, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Kaminsky, Stefan Niedoba