The U.S. Patent and Trademark Office has invalidated a claim to Web browser technology central to a case against Microsoft, a move that could spare the software giant from paying more than half a billion dollars in damages, according to documents obtained on Friday.
The patent agency's preliminary decision, if upheld, also means that Microsoft will not be required to make changes to its Internet Explorer Web browser that would have crippled the program's ability to work with mini-programs that work over the Internet, such as the QuickTime and Flash media players.
Last year, an Illinois jury delivered a $521 million verdict against Microsoft for infringing on technology developed by a privately held firm, Eolas Technologies, and the University of California.
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