An inter partes review (IPR) before the Patent Trial and Appeal Board (PTAB) is a proceeding of the petitioner versus the patent owner. In a situation where the petitioner or the patent owner consists of multiple entities, there may be a question as to which entity may speak for the group. This is the issue that the PTAB addressed in The petitioner in this case is a group of 12 entities, including well-known names such as Dell and Honeywell. In the petition filed, these 12 entities are organized into seven groups, with a different lead counsel designate for each group. Under this