The US Court of Appeals for the Federal Circuit vanquished Allergan Inc.'s bid to eliminate an inter partes review (IPR) challenge of its Restasis (cyclosporine) patents, finding that tribal sovereign immunity does not apply to IPR proceedings.
After Allergan transferred rights to the patents to the Saint Regis Mohawk Tribe, the tribe asked the US Patent and Trademark Office's Patent Trial and Appeal Board (PTAB) to terminate the IPR proceeding on the grounds of its sovereign immunity. The Board rejected the request, and in a July 20