Oral argument in Yissum v. Sony — IPR Joinder

I know there is a lot of interest among the patent bar with respect to the  joinder issue in IPR’s.

The Federal Circuit heard oral argument today in Yissum Research Development Co. v. Sony Corporation.  You can listen to the oral argument: [here].

During the oral argument, Judge Taranto asked about what he labeled as “panel stacking.” [Listen]  I assume he is referring to matters such as Target Corp. v. Destination Maternity Corp. [Read] and Zhongshan et al. v. Nidec [Read], where the PTAB reheard and reversed three judge panels with an expanded seven judge panel and a five judge panel, respectively, despite vigorous dissents.

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