Apple could be hit with upwards of $862 million in damages after a jury on Tuesday found that the iPhone maker used technology owned by the University of Wisconsin-Madison’s licensing arm without permission. The technology is housed in chips found in many of its most popular devices.
The jury in Madison, Wisconsin also said the patent, which improves processor efficiency, was valid.
Representatives for the Wisconsin Alumni Research Foundation (WARF) and Apple have not returned requests for more information.
WARF sued Apple in January 2014 over a 1998 patent.
The jury was asked to consider if Apple’s A7, A8 and A8X processors, found in the iPhone 5s, 6 and 6 Plus, as well as several versions of the iPad, violate the patent.
Apple denied any infringement and argued the patent is invalid. A request to invalidate the patent was denied by the U.S. Patent and Trademark Office in April.
A recent ruling by U.S. District Judge William Conley could hold Apple liable for up to $862.4 million in damages.
If it is determined that Apple infringed the patent willfully, it could lead to enhanced penalties.
A similar lawsuit with Intel was settled in 2008.
WARF also launched a second lawsuit against Apple which targets the company’s A9 and A9X chips.
The case is Wisconsin Alumni Research Foundation v. Apple Inc in the U.S. District Court for the Western District of Wisconsin, No. 14-cv-62.