Patents by Inventor Antti Penninkangas

Antti Penninkangas 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).

  • Metallocene catalysts containing an idenyl moiety substituted at the 4,-5,-6- or 7-position by a siloxy or germyloxy group
    Patent number: 7074863
    Abstract: A metallocene catalyst in which the metal is coordinated by a ?5 cyclopentadienyl ligand which forms part of an indenyl or indenyloid moiety, characterized in that said moiety is directly or indirectly substituted at the 4-, 5-, 6- or 7-position by a pendant siloxy or germyloxy group.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: July 11, 2006
    Assignee: Borealis Technology Oy
    Inventors: Peter Ekholm, Hendrik Luttikhedde, Janne Maaranen, Antti Penninkangas, Carl-Eric Wilen
  • Metallocene catalysts containing an idenyl moiety substituted at the 4,-5,-6- or 7-position by a siloxy or germyloxy group
    Publication number: 20040152882
    Abstract: A metallocene catalyst in which the metal is coordinated by a &eegr;5 cyclopentadienyl ligand which forms part of an indenyl or indenyloid moiety, characterised in that said moiety is directly or indirectly substituted at the 4-, 5-, 6- or 7-position by a pendant siloxy or germyloxy group.
    Type: Application
    Filed: March 26, 2004
    Publication date: August 5, 2004
    Inventors: Peter Ekhom, Hendrik Luttikhedde, Janne Maaranen, Antti Penninkangas, Carl-Eric Wilen