Apple Inc. (NASDAQ:AAPL) has amended its lawsuit against Samsung Electronics Co., Ltd. (LON:BC94) (KRX:005930), adding five more patents to the suit and Samsung’s latest handset, the Galaxy S4. The addition of the patents was first noted Wednesday by Foss Patents blogger Florian Mueller.

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Apple Targets Samsung’s Galaxy S4

The five patents in question are all related to against Samsung Electronics Co., Ltd. (LON:BC94) (KRX:005930)’s new Galaxy S4 handset. According to the filing, the Galaxy S4 does many of the things Apple Inc. (NASDAQ:AAPL)’s products already do and in the same way that previous Samsung devices do. The pending suit already contained complaints against those previous Samsung devices.

Two of the patents Apple Inc. (NASDAQ:AAPL) added to the lawsuit apply to its Siri technology, which it claims is being infringed upon by Google Now. Google Now has basically replaced the Android Quick Box Search on some of the devices, and Apple had targeted Quick Box Search in its previous complaints.

Two of the other patents Apple Inc. (NASDAQ:AAPL) wants to add to the lawsuit are related to user interfaces, and the other is connected with data synchronization.

Apple’s Review Of The Galaxy S4

Macworld contributor Loek Essers took a closer look at the process Apple used to examine the new Galaxy S4 handset and look for infringements. In the beginning, Samsung opened its source code for inspection on any computers that were connected to a live copy of its development servers.

Apple Inc. (NASDAQ:AAPL) said it was able to review the source code for the final released product and also get a glimpse into Samsung’s development process. The company’s court filing said when compared with the source code used on the devices that are in question, there seemed to be “constantly-changing versions of unreleased source code and works-in-progress.”

It also said the way Samsung had the servers set up caused problems with downloading the code, so Samsung made available a local copy of source code. Apple Inc. (NASDAQ:AAPL) said through its own analysis of answers it received from its questions to Samsung, it was able to “match its analysis of the source code produced by Samsung to those products.”

The next hearing at which Apple Inc. (NASDAQ:AAPL)’s motion to amend its complaint will be held June 25.