A federal court on Tuesday reversed an earlier ruling that Microsoft's product activation technology infringed on another company's patent, overturning a $388 million verdict in the case.
In a ruling on Tuesday, the court vacated the earlier decision and decided the case in Microsoft's favor.
"We are pleased that the court has vacated the jury verdict and entered judgment in favor of Microsoft," Microsoft spokesman Kevin Kutz said in a statement.
Tuesday's ruling is the latest twist in a case that has had plenty of them. Microsoft initially won a summary judgment ruling, which would have ended the case in its favor, but Uniloc appealed that ruling and a federal appeals court last year ruled that the case needed to go to trial with regard to two counts.
The victory in the Uniloc case comes as Microsoft is awaiting the result of an appeal in another patent case in which the custom XML feature in recent versions of Word was found to infringe on patents held by Canada's I4i. If it fails in its appeal bid, Microsoft faces damages of more than $200 million in that case as well as an injunction that would halt sales of word with the infringing feature.
Microsoft was hit Wednesday with a $388 million verdict in a long-running patent infringement case.
In the suit, Uniloc alleged that Microsoft used its patented technology as part of the software giant's product activation methods. A federal jury in Rhode Island found that Windows XP, Office XP, and Windows Server 2003 infringed on a Uniloc patent.
Microsoft said that it will appeal.
"We are very disappointed in the jury verdict," Microsoft spokesman Jack Evans said in an e-mail. "We believe that we do not infringe, that the patent is invalid and that this award of damages is legally and factually unsupported. We will ask the court to overturn the verdict."
Microsoft had initially won a summary judgment ruling, which would have ended the case in its favor, but Uniloc appealed that ruling and a federal appeals court last year ruled that the case needed to go to trial with regard to two counts. The trial began March 23.
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