Patents by Inventor Frederick R. Hansen

Frederick R. Hansen 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).

  • NOVEL OLEFIN METATHESIS CATALYSTS
    Publication number: 20140357478
    Abstract: The present invention refers to novel ruthenium- and osmium-based catalysts for olefin metathesis reactions, particularly to catalysts having stereoselective properties. Z-selectivity is obtained by utilising two mono-anionic ligands of very different steric requirement. In olefin metathesis reactions these catalysts selectively provide the Z-isomer of disubstituted olefinic products.
    Type: Application
    Filed: May 2, 2014
    Publication date: December 4, 2014
    Applicant: Bergen Teknologioverforing AS
    Inventors: Vidar R. Jensen, Giovanni Occhipinti, Frederick R. Hansen