The March 24, 2004 Following four years of investigation by European Commissioner Mario Monti, the European Commission makes its decision in the antitrust lawsuit against the firm.
The decision rendered condemns the monopoly position of Microsoft and its illegal practices. It inflicts on Microsoft a historic penalty of 497.5 million euros. Finally, the firm will publish the technical specifications of its products, sell some applications separately and ensure interoperability between its software and those of its competitors. In particular, Microsoft will have to sell a version of Windows without Windows Media Player. This decision will not be effective, Microsoft has decided to sell Windows Limited Media Edition at the same price as the full version.
The firm lodges an appeal with the Court of First Instance of the European Union on (June 7, 2004). As this is not suspensive, the sum of the fine was paid on1 st July 2004.
The July 12, 2006, the Commission pronounces a new fine (280 million euros) against Microsoft to sanction the delay taken by the group to publish its specifications.
The September 17, 2007 The first instance of the European Commission essentially confirms the decision of the European Commission in 2004 concerning abuse of dominant position by Microsoft.
The February 27, 2008 as the company has still not changed its behavior, it faces a new fine of 899 million euros.
In the patent infringement case between Microsoft and AT & T (American Telephone and Telegraph Company), the US Supreme Court ruled in favor of Microsoft. By seven votes against one, the Court decided on 30 April 2007 to censor the judgment of 20 July 2005 by a Federal Court of Appeal favorable to AT&T. The dispute concerned the use by Microsoft, in its Windows operating system, of an invention intended to digitize the voice and protected by a patent owned by AT&T.
As Microsoft sends directly to companies that manufacture computers outside theUnited States, the entire data component of its operating system so that they can copy them on their machines before selling, AT&T claimed to be compensated for all software, including their patented invention, which had been exported outside US territory.
Microsoft’s lawyers have acknowledged the counterfeiting of AT&T patents in the United States and recalled that this dispute was the subject of an amicable agreement between the parties in 2004. On the other hand, they strongly opposed the idea that Windows could be accused of counterfeiting at the international level, considering that a computer code is not a component as such until it is installed on a computer.
According to them, they can not blame Microsoft for exporting patent-protected computer components outside the United States.
The Supreme Courtconsiders first of all that US patent law is not intended to apply outside the territory, AT&T was to take legal action in the courts of the countries concerned. In addition, judges warn against the extension of patent protection and seem opposed to recognizing a line of computer code component quality belonging to a patented invention .
In 2012, InterDigital filed a complaint with ITC against Microsoft for unauthorized use of certain technologies. In April 2015, Microsoft is convicted of violating two patents on 3G wireless technologies used in Windows Phone.