Legal Opinion
I4i Ltd. Partnership v. Microsoft Corp.
Court of Appeals for the Federal Circuit
Decided March 10, 2010No. 2009-1504PublishedCited by 363 opinions
1Opinion of the Court
PROST, Circuit Judge.
This is a patent infringement case about an invention for editing custom XML, a computer language. The owner of the patent, i4i Limited Partnership (“i4i”), brought suit against Microsoft Corporation (“Microsoft”), alleging that the custom XML editor in certain versions of Microsoft Word (“Word”), Microsoft’s word-processing software, infringed i4i’s patent. After a seven-day trial, the jury found Microsoft liable for willful infringement. The jury rejected Microsoft’s argument that the patent was invalid, and awarded $200 million in damages to i4i. The district court…
2Cases cited79 opinions
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3Cited by363 opinions
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- Uniloc USA, Inc. v. Microsoft Corp.Court of Appeals for the Federal Circuit · 2011
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