Thanks for the communication Sman998. This news was anticipated to be a ligation tactical position taken by Arcsolft regarding the Nunchi Patents. IMHO thier decision to request for Inter Parties Review is driven to buy time. The time is needed for them to observe the outcomes of the pending Marksman opinions in the Northern District. IMHO thier legal representatives are in direct communication with Dropcam whose case is more advanced in the litigation process. Navigation of the murky waters of the courts are time consuming and expensive.