Prosecution Bar : Reexamination Alert™

Judge Campbell Denies Prosecution Bar in Reexamination

Scott Daniels | October 26, 2011

Cases with parallel infringement litigation in District Court and reexamination at the PTO often present the issue of whether a patentee’s lawyer, with access to confidential information under a protective order, may also defend the patent-in-suit in reexamination.  Accused infringers sometimes worry that the patentee’s counsel will use their confidential information, disclosed under the court’s protective order for use in the court case only, in the co-pending reexamination.   Patentees, on the other hand, often do not want to be forced to hire separate litigation and reexamination lawyers.

Judge David Campbell of the District Court in Arizona wrote an informative decision last week in NeXedge v. Freescale Semiconductor et al., 2011 U.S. Dist. LEXIS 121737, summarizing the applicable standards for resolving such disputes.  The accused infringer asked Judge Campbell to include in his protective order a provision barring each of the patentee’s lawyers, who had subscribed to the protective order, from participating in the reexamination. 


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