CBOE v. ISE, No. 07 C 623, Slip Op. (N.D. Ill. Mar. 6, 2013) (Lefkow, J.).

Judge Lefkow granted in part CBOE’s motion in limine to limit ISE’s infringement argument at trial in this patent case.  The issue for trial was whether CBOE’s Hybrid system was “merely two independent exchanges” or an integrated system.  ISE could, therefore, offer evidence that CBOEdirect contains elements of the asserted claims.  But ISE could not argue that CBOEdirect alone infringes based upon ISE’s admissions to the contrary in seeking reconsideration of the Court’s claim construction.