Microsoft wins AT&T patent battle
Published April 30th, 2007
Microsoft has won a long-running case in the US Supreme Court about the reach of US patent laws.
The court ruled that Microsoft was not liable in a software patent dispute involving US telecoms operator AT&T.
AT&T had sued Microsoft, alleging computers using Microsoft’s Windows operating system had breached its patent in voice compression software.
Microsoft accepted patent violations in the US, but argued the infringement should not be extended internationally.
AT&T had said it should be entitled to damages for all Windows-based computers manufactured outside of the US.
But in a 7-1 ruling, the US Supreme Court backed Microsoft’s position.
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