A federal appeals court has scheduled a hearing for next month to decide whether to uphold a ruling that would force Microsoft to stop selling Word in its current form.
A US district court judge last week issued an injunction that would halt sales of any version of Word that includes a custom XML function that was found by a jury to infringe on a patent from Canada's i4i.
In May, that jury also ordered Microsoft to pay $200m (£120m) in damages, an amount the judge hiked to more than $290m at the same time he ordered the injunction, which he scheduled to go into effect 60 days after the 11 August ruling.
In a statement, i4i said that Microsoft's appeal will be heard on 23 September. Microsoft had asked for an expedited hearing on the matter.
"We firmly believe that the US District Court made the right decision on the merits of the case," i4i chairman Loudon Owen said in a statement. "We are confident that we will prevail on the appeal."
Owen said i4i welcomes the speedy hearing. "This is a vital case for inventors and entrepreneurial companies who, like i4i, are damaged by the wilful infringement of their patents by competitors; particularly competitors as large and powerful as Microsoft."
In addition to the appeal, Microsoft could also pursue a technical workaround that allows the custom XML function to work in a different way that does not infringe on i4i's patent, remove that feature from Word, or pursue a settlement.
For its part, Owen told ZDNet UK's sister site, CNET News.com last week that i4i is not seeking to see Word pulled from the market, just to get Microsoft to stop infringing on his company's patents.
Microsoft was not immediately available for comment.
Talkback
Interesting to see where this is all going to end up.