Patent owners enforcing their rights who seek to exclude testimony about a pending administrative challenge to the patent-in-suit may face a Hobson’s choice – at least in Nevada. Particularly, the price for excluding evidence of pending administrative challenges to a patent may be a loss of the presumption of the patent’s validity in a district court trial.
In federal courts, judges may preclude evidence from being presented to a jury, particularly where the evidence has the potential to cause unfair prejudice. Such an opportunity is provided by Rule 403 of the Federal Rules of Evidence, which states that a court may exclude relevant evidence if its probative value is substantially outweighed by a danger of unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, and/or needlessly presenting cumulative evidence.
Judges may use Rule 403 in patent infringement cases, particularly in cases where the patent in question is part of a concurrent reexamination proceeding in the Patent Office. In a recent ruling on a motion to preclude evidence concerning a concurrent reexamination of a patent, the District Court of Nevada held, consistent with precedent, that the evidence would be prejudicial, and therefore was inadmissible at trial. Server Technology, Inc. vs. American Power Conversion Corporation (3:06-CV-00698-LRH-VPC (D. Nev.)).
Particularly, District Court Judge Larry Hicks stated that the reexamination of the patent in question was not final, and that a final decision would not occur until long after the trial. Judge Hicks reasoned that the prejudicial effect of notifying the jury about the reexamination proceeding would influence the jury’s determination of the issues of infringement and invalidity. In addition, allowing the evidence would only confuse a jury because both the standard of proof and the applied claim construction by the Patent Office would be different from the standards to be applied at trial. Such differences, in addition to causing jury confusion, would also waste time and resources because it would be necessary to explain the differences to the jury.
Continue Reading What Should A Jury Be Told About A Concurent PTO Trial?