The U.S. Trade International Trade Commission ruled Tuesday that Alcatel-Lucent hasn’t violated any of Microsoft’s four patents that the Redmond-based company accused the French-American group of infringing. Thus, the commission reversed the decision of administrative law judge Paul Luckern, who found Alcatel-Lucent guilty of violating intellectual property rights on only one of the four.

The patent in question, labeled 6,421,439, regards the technology used to find a user in a telephone network.

This comes as a second victory in a row for the French-American networking group in what could seem a patent infringement battle with Microsoft. Earlier this year, the software giant had to pay Alcatel-Lucent $368 million after being found guilty of violating two of its patents.

Alcatel-Lucent was formed in 2006 after the French company Alcatel merged with Lucent Technologies, an American telecommunications company composed of former AT&T Technologies and Bell Labs. The company has headquarters in both France and New Jersey and provides telecom hardware, software and services to service providers all over the world. On February 8 this year, the company has announced a loss of $3.74 billion for the fourth quarter and found itself in a tight place.

During the past year, Microsoft and Alcatel-Lucent, have accused each other of patent infringement two times, both of them being won by the French-American Group.

An Alcatel official, quoted by CNet, stated about the Tuesday decision, that the company is “Pleased with the it” and that it “always thought it had a strong case.”