CIVIL ACTION NO. 2:06-CV-434 (TJW). October 29, 2008 MEMORANDUM OPINION AND ORDER T. WARD, District Judge Pending before the Court is defendant IPSOS America, Inc.'s ("Ipsos") Motion to Amend its Invalidity Contentions (Docket Entry No. 73) and related briefing. Ipsos requests leave of the Court to amend its initial P.R. 3-3 Invalidity Contentions to include its indefiniteness positions on four limitations from the patent claims asserted by the plaintiff. Plaintiff opposes the motion. In light of