In 2014, WARF filed a lawsuit against Apple Inc., alleging that the latter had infringed , "Table based data speculation circuit for parallel processing computer", a method of increasing the efficiency of integrated circuits on its Apple A7 and Apple A8 system-on-chip products, and asking for US$862 million as a reasonable royalty. In October 2015, a jury found Apple liable; however, the infringement was found inadvertent, and as such, the court reduced the payment to $234 million. However, in July 2017, the judge added an interest payment to this amount and increased the award to $506 million. On appeal, Court of Appeals for the Federal Circuit overturned the verdict of the lower court, and concluded that Apple did not infringe WARF's patents. The SCOTUS denied WARF's writ of certiorari, thus affirming the CAFC's ruling.
