Apple began adding the Galaxy S4 to its ongoing patent-infringement case against Samsung last week, and it has now specified five patents which it believes the device is breaching. The Cupertino company has also taken aim at Google Now, which allegedly infringes its unified search patent.

FOSS Patents has obtained a copy of Apple’s motion, which highlights five patents that are allegedly infringed by the Galaxy S4.

Two of those patents cover Siri’s “universal interface for retrieval of information in a computer system” (8,086,604 and 6,847,959), and another covers a “graphical user interface using historical lists with field classes” (5,666,502).

The other two cover “asynchronous data synchronization amongst devices” (5,946,648), and a “system and method for performing an action on a structure in computer-generated data” (7,761,414).

Apple prevailed over HTC with that fifth patent, and the company claims that Android infringes it on an operating system level. So, technically, any device running Google’s platform could be guilty of infringing this one.

In addition to these claims against the Galaxy S4, Apple also added Google Now to its complaint, which allegedly infringes a patent that covers unified search boxes.

Apple’s motion does now mention the upcoming Galaxy S4 Google Edition, which runs stock Android rather than Samsung’s TouchWiz user interface, and instead focuses on the existing model that’s currently on sale right now.

However, we assume the Google Edition will also be added once Apple has had a chance to look at it.

• SourceFOSS Patents