A Friday appeals court ruling made it clear that Apple does not use patented technology owned by Google unit Motorola Mobility in making its iPhones. The U.S. Court of Appeals for the Federal Circuit upheld a decision by the International Trade Commission (ITC) in April that Apple did not violate a Google patent to make the iPhone.

"We're disappointed in this decision and are evaluating our options," Google unit Motorola said in a statement.

Motorola Mobility accused Apple in 2010 of infringing on six of its patents covering technology such as reducing signal noise and programming the device's touch screen so a user's head does not accidentally activate it while talking on the phone. The ITC ruled in April 2013 that Apple did not violate any of the six. The appeals court addressed one of the six patents.