Patents by Inventor Matthias Deppner

Matthias Deppner 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).

  • Unsymmetric unbridged bis-indenyl metallocenes and their use
    Patent number: 6482905
    Abstract: Unsymmetrical unbridged bis-substituted indenyl compounds in which one indenyl is substituted by a 2-aryl or 2-aryl alkyl substituent and the other indenyl is substituted by a terminally unsaturated alkenyl or alkyl substituent in the 1 or 2 position and their use in the polymerization of olefins.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: November 19, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Roland Schmidt, Matthias Deppner, Helmut G. Alt, M. Bruce Welch