Patents by Inventor Arthur J. Ashe, III

Arthur J. Ashe, III 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).

  • Azaborolyl group 4 metal complexes, catalysts and olefin polymerization process
    Patent number: 7074865
    Abstract: Metal complexes, catalysts derived therefrom, and polymerization processes using the same, characterized by the presence of one or more nitrogen and boron containing, anionic 5-membered cyclic ligand groups, especially 1,2-azaborolyl groups, are disclosed.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: July 11, 2006
    Assignees: Dow Global Technologies Inc., The Regents of The University of Michigan
    Inventors: Arthur J. Ashe, III, Hong Yang, Francis J. Timmers
  • Catalyst compositions comprising bridged metal complexes and an activating cocatalyst
    Patent number: 6376406
    Abstract: A catalyst and process of polymerizing olefins using it are described, the catalyst comprising a cocatalyst and a metal complex preferably of the formulas 4-9, wherein M is a group 4 metal, Z is a boron atom, and T is one of
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: April 23, 2002
    Assignees: The Dow Chemical Company, The Regents of The University of Michigan
    Inventors: Arthur J. Ashe, III, David D. Devore, Xinggao Fang, Kevin A. Frazier, D. Patrick Green, Jasson T. Patton, Francis J. Timmers
  • Heterocyclic metal complexes and olefin polymerization process
    Patent number: 6355818
    Abstract: Racemic isomers of metal complexes of Groups 3, 4 or the Lanthanides, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: March 12, 2002
    Assignees: The Dow Chemical Company, The Regents of the University of Michigan
    Inventors: Francis J. Timmers, David D. Devore, Arthur J. Ashe, III, Saleem A. Al-Ahmad, Xinggao Fang
  • Bridged metal complexes
    Patent number: 6284905
    Abstract: A Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing electron donating group, especially an amido group.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: September 4, 2001
    Assignees: The Dow Chemical Company, The Regents of the University of Michigan
    Inventors: Arthur J. Ashe, III, David D. Devore, Xinggao Fang, Kevin A. Frazier, D. Patrick Green, Jasson T. Patton, Francis J. Timmers
  • Heterocyclic metal complexes and olefin polymerization process
    Patent number: 6107421
    Abstract: Metal complexes, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: August 22, 2000
    Assignees: The Dow Chemical Company, The Regents of the University of Michigan
    Inventors: Francis J. Timmers, Arthur J. Ashe, III, David D. Devore, Saleem A. Al-Ahmad, Xinggao Fang