PTAB Rejects Tribal Sovereign Immunity IPR Defense

  • March 2, 2018
  • Category: Biotech and Pharma, Patent Litigation Feature

The Patent Trial and Appeal Board (PTAB) has rejected a motion to dismiss filed in several inter partes reviews (IPRs) by the Saint Regis Mohawk Tribe, declining to hold that the tribe’s sovereign immunity protects it from IPR. The February 23 ruling is just the latest setback for Allergan, the original owner of the patents challenged in those IPRs, which in September 2017 announced a controversial agreement under which it would assign the patents to the Mohawk tribe to shield the patents from PTAB challenges—only to see the same patents invalidated in district court. Meanwhile, shortly after the Board’s decision in the Allergan IPRs, Apple cited the same arguments in its opposition to a similar motion to dismiss in its IPR against MEC Resources, LLC, an entity owned by another Native American tribe seeking to leverage sovereign immunity.


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