This week InterDigital (IDCC) released financial results for the fourth quarter of 2013. While Q4 revenue is up from $87.9 million in 2012 to $99.7 million in 2013, the entity’s full-year revenue is less than half of what it was in 2012. IDCC’s total revenue in 2012 was $663.1 million compared to $325.4 million in 2013, a result IDCC attributes in part to a $384 million decrease in patent sales. Increased Q4 revenue was reportedly driven by past patent royalties, per-unit royalties, and technology solutions revenue, all of which were boosted by awards received in arbitration with Pegatron and Apple. IDCC disclosed that Pegatron accounted for 57% of total Q4 2013 revenue at $56.9 million, of which $35.6 million was past patent royalties.