The Federal Circuit has affirmed a liability determination by District of Delaware Judge Sue L. Robinson. In the underlying litigation, the district court rejected all parties’ claims: the patentee failed to demonstrate infringement, and the defendants came up short in their invalidity and unenforceability cases. Without discussion, the Federal Circuit agreed.
Also see the district court decision: Takeda Pharma. Co. Ltd. v. Teva Pharma. USA Inc., C.A. No. 06-033-SLR (D. Del. Mar. 31, 2008) (Robinson, J.).