Patents by Inventor Bernard P. Friedrichsen

Bernard P. Friedrichsen 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).

  • Substituted indenyl containing metal complexes and olefin polymerization process
    Patent number: 6015868
    Abstract: Group 4 metal complexes comprising an indenyl group substituted in the 2 or 3 position with at least one group selected from hydrocarbyl, fluoro-substituted hydrocarbyl, hydrocarbyloxy-substituted hydrocarbyl, dialkylamino-substituted hydroacrbyl, silyl, germyl and mixtures thereof, said indenyl group further being covalently bonded to the metal by means of a divalent ligand group, catalytic derivatives thereof and their use as olefin polymerization catalysts are disclosed.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: January 18, 2000
    Assignee: The Dow Chemical Company
    Inventors: Peter N. Nickias, Mark H. McAdon, Jasson T. Patton, Bernard P. Friedrichsen, Jorge Soto, James C. Stevens, Daniel D. VanderLende