In 2014, the Wisconsin Alumni Research Foundation (WARF) sued apple for infringement of U.S. Patent No 5,781,752 (the ‘752 Patent). In a related proceeding, the USPTO declined to institute an Inter Partes Review (IPR) brought by Apple to invalidate the ‘752 Patent. The ‘752 Patent is directed to computer architecture technology that can optimize processor performance. Specifically, a “predictor circuit” may anticipate user instructions based on previously stored data. WARF had alleged that its patented technology was being used on several products made by Apple, including the iPhone. In July of 2017, a U.S. District Judge in Wisconsin, William M. Conley, ordered Apple to pay over $506 million for infringement of several claims of the ‘752 Patent.
In October of 2015, following a two-week trial, a jury issued an award of over $234 million against Apple. Judge Conley’s order adds another $282 million in supplemental damages, ongoing royalties, interests, and costs. The order specified supplemental damages at the rate of $1.61 per infringing unit sold after October 26, 2015, and ongoing royalties at the rate of $2,74 per infringing unit thereafter and until December 26, 2016, the date expiration of the ‘752 Patent. The $282 million stem from Apple’s alleged continued infringement of the ‘752 Patent after the Jury's award in October of 2015.