It is reported that the University of Wisconsin sued the court that Apple used the university's patents in its A-series chips and was not authorized. A federal jury in the United States ruled that Apple must pay the University of Wisconsin $234 million to illegally use some technologies in some iPhone and iPad processors. At that time, it was a big blow to Apple's core A-series chips.
In 20 15, the jury of Madison District Court of Wisconsin ruled that a patent for improving processor efficiency obtained by the University of Wisconsin in 1998 was valid, and Apple infringed the patent when developing processors for some recent devices. WARF, the plaintiff in this case, initially demanded $400 million in compensation.
At that time, lawyers said that Apple could appeal to the US Court of Appeals for the Federal Circuit, which generally took more than a year. Some people speculate that with Apple's many years of patent litigation experience, even after more than a year, it will not be too passive in the face of such a situation.
Now a federal judge in Wisconsin has rejected Apple's application to revoke the jury verdict. In other words, the patent case is coming to an end, and Apple is likely to pay a fine of $234 million to the University of Wisconsin.