Microsoft loses Supreme Court case on i4i patent

Reuters News
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Posted: Jun 09, 2011 10:23 AM
Microsoft loses Supreme Court case on i4i patent

WASHINGTON (Reuters) - The U.S. Supreme Court ruled on Thursday against Microsoft Corp in its appeal of a record $290 million jury verdict for infringing a small Canadian software firm's patent.

The justices unanimously upheld a U.S. appeals court's ruling that went against the world's largest software company in its legal battle with Toronto-based i4i.

The high court rejected Microsoft's argument to adopt a lower standard to replace the long-standing requirement that a defendant in a patent infringement case prove by clear and convincing evidence that a plaintiff's patent is invalid.

(Reporting by James Vicini; Editing by Gerald E. McCormick)