A US federal court has ordered Microsoft to pay over $290m (£175m) for wilfully infringing on a patent by Canadian firm i4i.

The court prohibited Microsoft from “selling, offering to sell, and/or importing in or into the United States” any version of the software that can open custom XML files (with file extensions .xml, .docx, or .docm).

Microsoft, in a statement said,

“We are disappointed by the court’s ruling,” said Microsoft spokesperson Kevin Kutz.

“We believe the evidence clearly demonstrated that we do not infringe and that the i4i patent is invalid. We will appeal the verdict.”


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