Apple Inc. (NASDAQ:AAPL) wins its latest patent battle with Motorola Mobility. According to the ruling, the iPhone did not infringe on a patent owned by Motorola Mobility Holdings Inc, now a subsidiary of Google Inc (NASDAQ:GOOG).

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The patent was supposed to protect a proximity sensor that’s designed to prevent users from accidentally hanging up on their calls, but a judge for the U.S. International Trade Commission ruled that the patent was invalid. The full commission still must review the findings. Bloomberg reports that Google Inc (NASDAQ:GOOG) bought out Motorola Mobility for $12.5 billion so that it could gain access to the company’s more than 17,000 patents, which would supposedly protect it against Apple Inc. (NASDAQ:AAPL).

This is the second time in a year that Apple Inc. (NASDAQ:AAPL) has faced down patent infringement allegations from Motorola Mobility over technology used in the iPhone and its other products. The same judge also ruled earlier this year Apple’s products did not violate patents that were filed in protection of 3G technology.

Apple won another patent battle with Samsung Electronics Co., Ltd. (ADR) (LON:BC94) earlier this week. As ValueWalk reported, a judge ruled that Samsung did infringe upon patents held by Apple, although Apple’s attempt to ban the Samsung phones that were called into question failed. Meanwhile Samsung has said it will drop its patent injunction applications against Apple Inc. (NASDAQ:AAPL) in the U.K. France, Italy, the Netherlands, and Germany, although there are many other lawsuits still pending between Samsung and Apple.