Last week, Google's newly-acquired Motorola Mobility subsidiary filed a second patent-infringement complaint with the US International Trade Commission (ITC), accusing Apple of infringing on seven Motorola patents.

The second ITC complaint by Motorola comes nearly a month after the agency ruled on the company's patent-infringement claims against Apple regarding seven other patents.

Revealing the details of the complaint filed by Motorola on August 17, the ITC said on Monday that the complaint claims that the Motorola patents violated by Apple cover a number of mobile phone features, including Apple's Siri voice assistant, location reminders, email notifications, and a phone/video player.

According to the latest Motorola complaint, the Apple devices which have infringed the Motorola patents include the iPhone and the iPad, as well as different Mac computer models including the MacBook Air and MacBook Pro.

Elaborating on the reason behind filing a second ITC complaint against Apple, Motorola said in a prepared statement that the move resulted from the fact that Apple had not been cooperative in negotiations which were aimed at licensing the in-question Motorola patents to Apple to resolve the matter.

Noting that Motorola "would like to settle these patent matters," the company said in its statement that "Apple's unwillingness to work out a license leaves us little choice but to defend ourselves and our engineers' innovations."