Patents by Inventor Frederick Rosberg Hansen

Frederick Rosberg 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).

  • Olefin metathesis catalysts
    Patent number: 8716488
    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 utilizing 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: Grant
    Filed: September 25, 2012
    Date of Patent: May 6, 2014
    Assignee: Bergen Teknologioverforing AS
    Inventors: Vidar R. Jensen, Giovanni Occhipinti, Frederick Rosberg Hansen