Se-Kure Controls, Inc. v. Vanguard Prods. Group Inc., No. 02 C 3767, 2008 WL 169054 (N.D. Ill. Jan. 17, 2008) (Cox, Mag. J.).*

Judge Cox denied plaintiff’s motion to exclude defendants’ patent law expert witness, but placed limits on the expert’s testimony. The Court held that a patent expert’s testimony could aid the Court’s understanding of Patent Office procedures and of what would have been material to a reasonable patent examiner. But the patent law expert was not allowed to testify as to any legal conclusions. And the testimony would be given outside the jury’s presence to avoid any prejudice. Because the Court decides inequitable conduct, there was no need for the jury to hear the expert’s testimony.

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